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<div class="header">
  <div class="summary">
<a href="#func-members">函数</a> &#124;
<a href="#var-members">变量</a>  </div>
  <div class="headertitle">
<div class="title">dc.c 文件参考</div>  </div>
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<div class="contents">
<div class="textblock"><code>#include &quot;<a class="el" href="a03629_source.html">precomp.h</a>&quot;</code><br />
</div>
<p><a href="a00644_source.html">浏览源代码.</a></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
函数</h2></td></tr>
<tr class="memitem:af26b19776903d244c87630df83f7c48f"><td class="memItemLeft" align="right" valign="top">VOID&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#af26b19776903d244c87630df83f7c48f">ResetOrg</a> (HRGN hrgn, <a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a> pdce)</td></tr>
<tr class="separator:af26b19776903d244c87630df83f7c48f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2123a4aeb57f1a00139f7d8ada52b213"><td class="memItemLeft" align="right" valign="top">HDC&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a2123a4aeb57f1a00139f7d8ada52b213">_GetDC</a> (<a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a> pwnd)</td></tr>
<tr class="separator:a2123a4aeb57f1a00139f7d8ada52b213"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1ec030500a19f775519fbaf16c15f814"><td class="memItemLeft" align="right" valign="top">BOOL&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a1ec030500a19f775519fbaf16c15f814">_ReleaseDC</a> (HDC hdc)</td></tr>
<tr class="separator:a1ec030500a19f775519fbaf16c15f814"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a50fb8ad81b743ff5102cc40b853ca47f"><td class="memItemLeft" align="right" valign="top">HDC&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a50fb8ad81b743ff5102cc40b853ca47f">_GetScreenDC</a> (VOID)</td></tr>
<tr class="separator:a50fb8ad81b743ff5102cc40b853ca47f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5fae5b77e79eae6c3c51799de993d74f"><td class="memItemLeft" align="right" valign="top">HDC&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a5fae5b77e79eae6c3c51799de993d74f">_GetWindowDC</a> (<a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a> pwnd)</td></tr>
<tr class="separator:a5fae5b77e79eae6c3c51799de993d74f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a530c91cf308e0cab4c57fe768013662d"><td class="memItemLeft" align="right" valign="top">VOID&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a530c91cf308e0cab4c57fe768013662d">UserSetDCVisRgn</a> (<a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a> pdce)</td></tr>
<tr class="separator:a530c91cf308e0cab4c57fe768013662d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2105b79dcc40cce63552617c07e517dd"><td class="memItemLeft" align="right" valign="top">HRGN&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a2105b79dcc40cce63552617c07e517dd">UserGetClientRgn</a> (HWND hwnd, LPRECT lprc)</td></tr>
<tr class="separator:a2105b79dcc40cce63552617c07e517dd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a83380a0dab02357ac1a8fb85688c00cd"><td class="memItemLeft" align="right" valign="top">BOOL&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a83380a0dab02357ac1a8fb85688c00cd">UserGetHwnd</a> (HDC hdc, HWND *phwnd, PVOID *ppwo, BOOL bCheckStyle)</td></tr>
<tr class="separator:a83380a0dab02357ac1a8fb85688c00cd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a874d84dff8fcf3357a543b7d5c99c833"><td class="memItemLeft" align="right" valign="top">VOID&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a874d84dff8fcf3357a543b7d5c99c833">UserAssociateHwnd</a> (HWND hwnd, PVOID pwo)</td></tr>
<tr class="separator:a874d84dff8fcf3357a543b7d5c99c833"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a23328525ae859df955088b4ce6aa0fce"><td class="memItemLeft" align="right" valign="top">BOOL&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a23328525ae859df955088b4ce6aa0fce">UserReleaseDC</a> (HDC hdc)</td></tr>
<tr class="separator:a23328525ae859df955088b4ce6aa0fce"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1c4d30db5baf9bd9210e666a55ec85ac"><td class="memItemLeft" align="right" valign="top">VOID&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a1c4d30db5baf9bd9210e666a55ec85ac">InvalidateDce</a> (<a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a> pdce)</td></tr>
<tr class="separator:a1c4d30db5baf9bd9210e666a55ec85ac"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abf0325ba752a15637a55bb0d21285282"><td class="memItemLeft" align="right" valign="top">VOID&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#abf0325ba752a15637a55bb0d21285282">DeleteHrgnClip</a> (<a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a> pdce)</td></tr>
<tr class="separator:abf0325ba752a15637a55bb0d21285282"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad358326cc1c73aca105306a9287e609f"><td class="memItemLeft" align="right" valign="top">VOID&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#ad358326cc1c73aca105306a9287e609f">SelectFixedFont</a> (<a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a> pdce)</td></tr>
<tr class="separator:ad358326cc1c73aca105306a9287e609f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a40f384390d37443680be366bd973ab3e"><td class="memItemLeft" align="right" valign="top">HDC&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a40f384390d37443680be366bd973ab3e">_GetDCEx</a> (<a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a> pwnd, HRGN hrgnClip, <a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> flags)</td></tr>
<tr class="separator:a40f384390d37443680be366bd973ab3e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a99c1c681a5ca832389887bfab954cdb7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a03608.html#afd1a0e78d1f88954d93e48ab3821781f">UINT</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a99c1c681a5ca832389887bfab954cdb7">ReleaseCacheDC</a> (HDC hdc, BOOL fEndPaint)</td></tr>
<tr class="separator:a99c1c681a5ca832389887bfab954cdb7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac94f19fd4bf35ebf88eaea575f87bc0d"><td class="memItemLeft" align="right" valign="top">HDC&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#ac94f19fd4bf35ebf88eaea575f87bc0d">CreateCacheDC</a> (<a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a> pwndOrg, <a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> flags)</td></tr>
<tr class="separator:ac94f19fd4bf35ebf88eaea575f87bc0d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab675a328649da4f932300c5dce1f5e1d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#ab675a328649da4f932300c5dce1f5e1d">WindowFromCacheDC</a> (HDC hdc)</td></tr>
<tr class="separator:ab675a328649da4f932300c5dce1f5e1d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a032fb1a6a955b0ec72e0412511d57ddc"><td class="memItemLeft" align="right" valign="top">VOID&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a032fb1a6a955b0ec72e0412511d57ddc">DelayedDestroyCacheDC</a> (VOID)</td></tr>
<tr class="separator:a032fb1a6a955b0ec72e0412511d57ddc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7f629d5ea5347d4878f63af730734e45"><td class="memItemLeft" align="right" valign="top">BOOL&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a7f629d5ea5347d4878f63af730734e45">DestroyCacheDC</a> (<a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a> *ppdce, HDC hdc)</td></tr>
<tr class="separator:a7f629d5ea5347d4878f63af730734e45"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a60c179a4f25667580d419b20c295f79e"><td class="memItemLeft" align="right" valign="top">VOID&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a60c179a4f25667580d419b20c295f79e">InvalidateGDIWindows</a> (<a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a> pwnd)</td></tr>
<tr class="separator:a60c179a4f25667580d419b20c295f79e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a69728f013275d0f4332dded4eb2432a3"><td class="memItemLeft" align="right" valign="top">BOOL&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a69728f013275d0f4332dded4eb2432a3">InvalidateDCCache</a> (<a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a> pwndInvalid, <a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> flags)</td></tr>
<tr class="separator:a69728f013275d0f4332dded4eb2432a3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6dbdb01326edbe1ee0e910e2210d7e7d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a6dbdb01326edbe1ee0e910e2210d7e7d">_WindowFromDC</a> (HDC hdc)</td></tr>
<tr class="separator:a6dbdb01326edbe1ee0e910e2210d7e7d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6abd9613dcf1227e044eb29b61b1b4ae"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a6abd9613dcf1227e044eb29b61b1b4ae">FastWindowFromDC</a> (HDC hdc)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="var-members"></a>
变量</h2></td></tr>
<tr class="memitem:a31f5ecc6a84f44341dd408cf54f41a12"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00644.html#a31f5ecc6a84f44341dd408cf54f41a12">gnDCECount</a> = 0</td></tr>
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<h2 class="groupheader">函数说明</h2>
<a id="a2123a4aeb57f1a00139f7d8ada52b213"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2123a4aeb57f1a00139f7d8ada52b213">&#9670;&nbsp;</a></span>_GetDC()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">HDC _GetDC </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a>&#160;</td>
          <td class="paramname"><em>pwnd</em></td><td>)</td>
          <td></td>
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</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00066">66</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;{</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="comment">     * Special case for NULL: For backward compatibility we want to return</span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="comment">     * a window DC for the desktop that does not exclude its children.</span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keywordflow">if</span> (pwnd == NULL) {</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160; </div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        <a class="code" href="a02801.html">PDESKTOP</a> pdesk = <a class="code" href="a00257.html#a8315d2c807ba18ba9e528c40614b6173">PtiCurrent</a>()-&gt;<a class="code" href="a02889.html#abb1184e0c5805b5ad89b79dcc2bd17c8">rpdesk</a>;</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160; </div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;        <span class="keywordflow">if</span> (pdesk) {</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160; </div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;            <span class="keywordflow">return</span> <a class="code" href="a00644.html#a40f384390d37443680be366bd973ab3e">_GetDCEx</a>(pdesk-&gt;<a class="code" href="a02801.html#a76d4881aa4c15330103e83a80e6b5dc7">pDeskInfo</a>-&gt;<a class="code" href="a02609.html#a68937d60a6f49b7a8431db62b38ea721">spwnd</a>,</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;                            NULL,</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;                            DCX_WINDOW | DCX_CACHE | DCX_NEEDFONT);</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        }</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160; </div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="comment">         * The thread has no desktop.  Fail the call.</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    }</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160; </div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="a00644.html#a40f384390d37443680be366bd973ab3e">_GetDCEx</a>(pwnd, NULL, DCX_NEEDFONT | DCX_USESTYLE);</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00644_source.html#l00560">_GetDCEx()</a>, <a class="el" href="a00899_source.html#l01706">tagDESKTOP::pDeskInfo</a>, <a class="el" href="a00263_source.html#l00526">PtiCurrent()</a>, <a class="el" href="a00899_source.html#l02288">tagTHREADINFO::rpdesk</a> , 以及 <a class="el" href="a00365_source.html#l01603">tagDESKTOPINFO::spwnd</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a03614_source.html#l05248">NtUserGetDC()</a>, <a class="el" href="a00620_source.html#l00094">UT_InvertCaret()</a>, <a class="el" href="a00656_source.html#l00499">xxxDesktopWndProc()</a> , 以及 <a class="el" href="a00773_source.html#l01470">xxxMNInvertItem()</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a40f384390d37443680be366bd973ab3e">&#9670;&nbsp;</a></span>_GetDCEx()</h2>

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      <table class="memname">
        <tr>
          <td class="memname">HDC _GetDCEx </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a>&#160;</td>
          <td class="paramname"><em>pwnd</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">HRGN&#160;</td>
          <td class="paramname"><em>hrgnClip</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a>&#160;</td>
          <td class="paramname"><em>flags</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00560">560</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00564"></a><span class="lineno">  564</span>&#160;{</div>
<div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160;    HRGN  hrgn;</div>
<div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;    HDC   hdcMatch;</div>
<div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;    <a class="code" href="a02581.html">PWND</a>  pwndClip;</div>
<div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;    <a class="code" href="a02581.html">PWND</a>  pwndOrg;</div>
<div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;    <a class="code" href="a02909.html">PDCE</a>  pdce;</div>
<div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;    <a class="code" href="a02909.html">PDCE</a>  *ppdce;</div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;    <a class="code" href="a02909.html">PDCE</a>  *ppdceNotInUse;</div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;    <a class="code" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> flagsMatch;</div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;    BOOL  bpwndOrgVisible;</div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160; </div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;<span class="comment">     * Lock the device while we&#39;re playing with visrgns.</span></div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;    GreLockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160; </div>
<div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;    <span class="keywordflow">if</span> (pwnd == NULL)</div>
<div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;        pwnd = <a class="code" href="a00257.html#a8315d2c807ba18ba9e528c40614b6173">PtiCurrent</a>()-&gt;<a class="code" href="a02889.html#abb1184e0c5805b5ad89b79dcc2bd17c8">rpdesk</a>-&gt;<a class="code" href="a02801.html#a76d4881aa4c15330103e83a80e6b5dc7">pDeskInfo</a>-&gt;<a class="code" href="a02609.html#a68937d60a6f49b7a8431db62b38ea721">spwnd</a>;</div>
<div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160; </div>
<div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;    hdcMatch = NULL;</div>
<div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;    pwndOrg  = pwndClip = pwnd;</div>
<div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160; </div>
<div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;    bpwndOrgVisible = <a class="code" href="a00365.html#ad3225ce06580cb58802233512f3d9c81">IsVisible</a>(pwndOrg);</div>
<div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160; </div>
<div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;    <span class="keywordflow">if</span> (PpiCurrent()-&gt;W32PF_Flags &amp; W32PF_OWNDCCLEANUP) {</div>
<div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;        <a class="code" href="a00644.html#a032fb1a6a955b0ec72e0412511d57ddc">DelayedDestroyCacheDC</a>();</div>
<div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;    }</div>
<div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160; </div>
<div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;<span class="comment">     * If necessary, compute DCX flags from window style.</span></div>
<div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00595"></a><span class="lineno">  595</span>&#160;    <span class="keywordflow">if</span> (flags &amp; DCX_USESTYLE) {</div>
<div class="line"><a name="l00596"></a><span class="lineno">  596</span>&#160; </div>
<div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160;        flags &amp;= ~(DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN | DCX_PARENTCLIP);</div>
<div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160; </div>
<div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;        <span class="keywordflow">if</span> (!(flags &amp; DCX_WINDOW)) {</div>
<div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160; </div>
<div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;            <span class="keywordflow">if</span> (TestCF(pwndOrg, CFPARENTDC))</div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;                flags |= DCX_PARENTCLIP;</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160; </div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;            <span class="keywordflow">if</span> (!(flags &amp; DCX_CACHE)) {</div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160; </div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;<span class="comment">                 * If the DCX_CACHE flag is present, override OWNDC/CLASSDC.</span></div>
<div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;<span class="comment">                 * Otherwise, calculate from appropriate style bits.</span></div>
<div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;                flags |= DCX_CACHE;</div>
<div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;                <span class="keywordflow">if</span> (TestCF(pwndOrg, CFOWNDC)) {</div>
<div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160; </div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;                    <span class="comment">/*</span></div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;<span class="comment">                     * Look for a non-cache entry that matches pwndOrg...</span></div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;<span class="comment">                     */</span></div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;                    flags &amp;= ~DCX_CACHE;</div>
<div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (TestCF(pwndOrg, CFCLASSDC)) {</div>
<div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;                    <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(pwndOrg-&gt;<a class="code" href="a02581.html#a9ac6b15978318e3401ef9a878ccb40ac">pcls</a>-&gt;<a class="code" href="a02569.html#aa1f7797b3bd2c83cc0af24110b6d8f64">pdce</a>);</div>
<div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160; </div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;                    <span class="comment">/*</span></div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;<span class="comment">                     * Look for a non-cache entry that matches hdc...</span></div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;<span class="comment">                     */</span></div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;                    hdcMatch = pwndOrg-&gt;<a class="code" href="a02581.html#a9ac6b15978318e3401ef9a878ccb40ac">pcls</a>-&gt;<a class="code" href="a02569.html#aa1f7797b3bd2c83cc0af24110b6d8f64">pdce</a>-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>;</div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;                    flags &amp;= ~DCX_CACHE;</div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;                }</div>
<div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;            }</div>
<div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160; </div>
<div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;            <span class="keywordflow">if</span> (TestWF(pwndOrg, WFCLIPCHILDREN))</div>
<div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;                flags |= DCX_CLIPCHILDREN;</div>
<div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160; </div>
<div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160;            <span class="keywordflow">if</span> (TestWF(pwndOrg, WFCLIPSIBLINGS))</div>
<div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;                flags |= DCX_CLIPSIBLINGS;</div>
<div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160; </div>
<div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;<span class="comment">             * Minimized windows never exclude their children.</span></div>
<div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;            <span class="keywordflow">if</span> (TestWF(pwndOrg, WFMINIMIZED)) {</div>
<div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;                flags &amp;= ~DCX_CLIPCHILDREN;</div>
<div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160; </div>
<div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160;                <span class="keywordflow">if</span> (pwndOrg-&gt;<a class="code" href="a02581.html#a9ac6b15978318e3401ef9a878ccb40ac">pcls</a>-&gt;spicn)</div>
<div class="line"><a name="l00641"></a><span class="lineno">  641</span>&#160;                    flags |= DCX_CACHE;</div>
<div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;            }</div>
<div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160; </div>
<div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;            <span class="keywordflow">if</span> (TestWF(pwndClip, WFCLIPSIBLINGS))</div>
<div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;                flags |= DCX_CLIPSIBLINGS;</div>
<div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160; </div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;            flags |= DCX_CACHE;</div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160; </div>
<div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00651"></a><span class="lineno">  651</span>&#160;<span class="comment">             * Window DCs never exclude children.</span></div>
<div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;        }</div>
<div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;    }</div>
<div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160; </div>
<div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;<span class="comment">     * Deal with all the Win 3.0-compatible clipping rules:</span></div>
<div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;<span class="comment">     * DCX_NOCHILDCLIP overrides:</span></div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;<span class="comment">     *      DCX_PARENTCLIP/CS_OWNDC/CS_CLASSDC</span></div>
<div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;<span class="comment">     * DCX_PARENTCLIP overrides:</span></div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;<span class="comment">     *      DCX_CLIPSIBLINGS/DCX_CLIPCHILDREN/CS_OWNDC/CS_CLASSDC</span></div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;    <span class="keywordflow">if</span> (flags &amp; DCX_NOCLIPCHILDREN) {</div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;        flags &amp;= ~(DCX_PARENTCLIP | DCX_CLIPCHILDREN);</div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;        flags |= DCX_CACHE;</div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;    }</div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160; </div>
<div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;    <span class="keywordflow">if</span> (flags &amp; DCX_PARENTCLIP) {</div>
<div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160; </div>
<div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;        <a class="code" href="a02581.html">PWND</a> pwndParent;</div>
<div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160; </div>
<div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;<span class="comment">         * If this window has no parent.  This can occur if the app is</span></div>
<div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160;<span class="comment">         * calling GetDC in response to a CBT_CREATEWND callback.  In this</span></div>
<div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;<span class="comment">         * case, the parent is not yet setup.</span></div>
<div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;        <span class="keywordflow">if</span> (pwndOrg-&gt;<a class="code" href="a02581.html#a6053af0b243b6737640988eb63081de3">spwndParent</a> == NULL)</div>
<div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;            pwndParent = <a class="code" href="a00257.html#a8315d2c807ba18ba9e528c40614b6173">PtiCurrent</a>()-&gt;<a class="code" href="a02889.html#abb1184e0c5805b5ad89b79dcc2bd17c8">rpdesk</a>-&gt;<a class="code" href="a02801.html#a76d4881aa4c15330103e83a80e6b5dc7">pDeskInfo</a>-&gt;<a class="code" href="a02609.html#a68937d60a6f49b7a8431db62b38ea721">spwnd</a>;</div>
<div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;            pwndParent = pwndOrg-&gt;<a class="code" href="a02581.html#a6053af0b243b6737640988eb63081de3">spwndParent</a>;</div>
<div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160; </div>
<div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160;<span class="comment">         * Always get the DC from the cache.</span></div>
<div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;        flags |= DCX_CACHE;</div>
<div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160; </div>
<div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;<span class="comment">         * We can&#39;t use a shared DC if the visibility of the</span></div>
<div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;<span class="comment">         * child does not match the parent&#39;s, or if a</span></div>
<div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;<span class="comment">         * CLIPSIBLINGS or CLIPCHILDREN DC is requested.</span></div>
<div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160;<span class="comment">         *</span></div>
<div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;<span class="comment">         * In 3.1, we pay attention to the CLIPSIBLINGS and CLIPCHILDREN</span></div>
<div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;<span class="comment">         * bits of CS_PARENTDC windows, by overriding CS_PARENTDC if</span></div>
<div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;<span class="comment">         * either of these flags are requested.</span></div>
<div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;<span class="comment">         *</span></div>
<div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;<span class="comment">         * BACKWARD COMPATIBILITY HACK</span></div>
<div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;<span class="comment">         *</span></div>
<div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160;<span class="comment">         * If parent is CLIPCHILDREN, get a cache DC, but don&#39;t</span></div>
<div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;<span class="comment">         * use parent&#39;s DC.  Windows PowerPoint depends on this</span></div>
<div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160;<span class="comment">         * behavior in order to draw the little gray rect between</span></div>
<div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;<span class="comment">         * its scroll bars correctly.</span></div>
<div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;        <span class="keywordflow">if</span> ((TestWF(pwndOrg, WFWIN31COMPAT) ||</div>
<div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;                !TestWF(pwndParent, WFCLIPCHILDREN)) &amp;&amp;</div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;                !(flags &amp; (DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN)) &amp;&amp;</div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;                TestWF(pwndParent, WFVISIBLE) ==</div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;                TestWF(pwndOrg, WFVISIBLE)) {</div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160; </div>
<div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;            pwndClip = pwndParent;</div>
<div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160; </div>
<div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;            <span class="keywordflow">if</span> (flags &amp; DCX_CLIPCHILDREN)</div>
<div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160;                <a class="code" href="a00371.html#a01c4659626880ba56745765a3580a36b">RIPMSG0</a>(<a class="code" href="a00371.html#a41f433389f20db57f042022a662e96de">RIP_WARNING</a>, <span class="stringliteral">&quot;WS_CLIPCHILDREN overridden by CS_PARENTDC&quot;</span>);</div>
<div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;            <span class="keywordflow">if</span> (flags &amp; DCX_CLIPSIBLINGS)</div>
<div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;                <a class="code" href="a00371.html#a01c4659626880ba56745765a3580a36b">RIPMSG0</a>(<a class="code" href="a00371.html#a41f433389f20db57f042022a662e96de">RIP_WARNING</a>, <span class="stringliteral">&quot;WS_CLIPSIBLINGS overridden by CS_PARENTDC&quot;</span>);</div>
<div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;<span class="comment">             * Make sure flags reflect hwndClip rather than hwndOrg.</span></div>
<div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;<span class="comment">             * But, we must never clip the children (since that&#39;s who</span></div>
<div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;<span class="comment">             * wants to do the drawing!)</span></div>
<div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;            flags &amp;= ~(DCX_CLIPCHILDREN | DCX_CLIPSIBLINGS);</div>
<div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160;            <span class="keywordflow">if</span> (TestWF(pwndClip, WFCLIPSIBLINGS))</div>
<div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160;                flags |= DCX_CLIPSIBLINGS;</div>
<div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160;        }</div>
<div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;    }</div>
<div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160; </div>
<div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160;<span class="comment">     * Make sure we don&#39;t return an OWNDC if the calling thread didn&#39;t</span></div>
<div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;<span class="comment">     * create this window - need to returned cached always in this case.</span></div>
<div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;<span class="comment">     * Win95 does not contain this code.  Why?</span></div>
<div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;    <span class="keywordflow">if</span> (!(flags &amp; DCX_CACHE)) {</div>
<div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160;        <span class="keywordflow">if</span> (pwndOrg == NULL || GETPTI(pwndOrg) != <a class="code" href="a00257.html#a8315d2c807ba18ba9e528c40614b6173">PtiCurrent</a>())</div>
<div class="line"><a name="l00737"></a><span class="lineno">  737</span>&#160;            flags |= DCX_CACHE;</div>
<div class="line"><a name="l00738"></a><span class="lineno">  738</span>&#160;    }</div>
<div class="line"><a name="l00739"></a><span class="lineno">  739</span>&#160; </div>
<div class="line"><a name="l00740"></a><span class="lineno">  740</span>&#160;    flagsMatch = flags &amp; DCX_MATCHMASK;</div>
<div class="line"><a name="l00741"></a><span class="lineno">  741</span>&#160; </div>
<div class="line"><a name="l00742"></a><span class="lineno">  742</span>&#160;    <span class="keywordflow">if</span> (!(flags &amp; DCX_CACHE)) {</div>
<div class="line"><a name="l00743"></a><span class="lineno">  743</span>&#160; </div>
<div class="line"><a name="l00744"></a><span class="lineno">  744</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00745"></a><span class="lineno">  745</span>&#160;<span class="comment">         * Handle CS_OWNDC and CS_CLASSDC cases specially.  Based on the</span></div>
<div class="line"><a name="l00746"></a><span class="lineno">  746</span>&#160;<span class="comment">         * supplied match information, we need to find the appropriate DCE.</span></div>
<div class="line"><a name="l00747"></a><span class="lineno">  747</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160;        <span class="keywordflow">for</span> (ppdce = &amp;<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; (pdce = *ppdce); ppdce = &amp;pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l00749"></a><span class="lineno">  749</span>&#160; </div>
<div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160;            <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_CACHE)</div>
<div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;                <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160; </div>
<div class="line"><a name="l00753"></a><span class="lineno">  753</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00754"></a><span class="lineno">  754</span>&#160;<span class="comment">             * Look for the entry that matches hdcMatch or pwndOrg...</span></div>
<div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160;            <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a> == pwndOrg || pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a> == hdcMatch))</div>
<div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;                <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160; </div>
<div class="line"><a name="l00759"></a><span class="lineno">  759</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;<span class="comment">             * NOTE: The &quot;Multiple-BeginPaint()-of-OWNDC-Window&quot; Conundrum</span></div>
<div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160;<span class="comment">             *</span></div>
<div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;<span class="comment">             * There is a situation having to do with OWNDC or CLASSDC window</span></div>
<div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;<span class="comment">             * DCs that can theoretically arise that is handled specially</span></div>
<div class="line"><a name="l00764"></a><span class="lineno">  764</span>&#160;<span class="comment">             * here and in ReleaseCacheDC().  These DCs are identified with</span></div>
<div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160;<span class="comment">             * the DCX_CACHE bit CLEAR.</span></div>
<div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160;<span class="comment">             *</span></div>
<div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;<span class="comment">             * In the case where BeginPaint() (or a similar operation) is</span></div>
<div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;<span class="comment">             * called more than once without an intervening EndPaint(), the</span></div>
<div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160;<span class="comment">             * DCX_INTERSECTRGN (or DCX_EXCLUDERGN) bit may already be set</span></div>
<div class="line"><a name="l00770"></a><span class="lineno">  770</span>&#160;<span class="comment">             * when we get here.</span></div>
<div class="line"><a name="l00771"></a><span class="lineno">  771</span>&#160;<span class="comment">             *</span></div>
<div class="line"><a name="l00772"></a><span class="lineno">  772</span>&#160;<span class="comment">             * Theoretically, the correct thing to do is to save the current</span></div>
<div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;<span class="comment">             * hrgnClip, and set up the new one here.  In ReleaseCacheDC, the</span></div>
<div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160;<span class="comment">             * saved hrgnClip is restored and the visrgn recomputed.</span></div>
<div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;<span class="comment">             *</span></div>
<div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;<span class="comment">             * All of this is only necessary if BOTH calls involve an</span></div>
<div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160;<span class="comment">             * hrgnClip that causes the visrgn to be changed (i.e., the</span></div>
<div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160;<span class="comment">             * simple hrgnClip test clears the INTERSECTRGN or EXCLUDERGN bit</span></div>
<div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;<span class="comment">             * fails), which is not at all likely.</span></div>
<div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;<span class="comment">             *</span></div>
<div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;<span class="comment">             * When this code encounters this multiple-BeginPaint case it</span></div>
<div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;<span class="comment">             * punts by honoring the new EXCLUDE/INTERSECTRGN bits, but it</span></div>
<div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160;<span class="comment">             * first restores the DC to a wide-open visrgn before doing so.</span></div>
<div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160;<span class="comment">             * This means that the first EndPaint() will restore the visrgn</span></div>
<div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;<span class="comment">             * to a wide-open DC, rather than clipped to the first</span></div>
<div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160;<span class="comment">             * BeginPaint()&#39;s update rgn.  This is a good punt, because worst</span></div>
<div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;<span class="comment">             * case an app does a bit more drawing than it should.</span></div>
<div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160;            <span class="keywordflow">if</span> ((pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; (DCX_EXCLUDERGN | DCX_INTERSECTRGN)) &amp;&amp;</div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;                    (flags &amp; (DCX_EXCLUDERGN | DCX_INTERSECTRGN))) {</div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160;                <a class="code" href="a00371.html#a01c4659626880ba56745765a3580a36b">RIPMSG0</a>(<a class="code" href="a00371.html#a41f433389f20db57f042022a662e96de">RIP_WARNING</a>, <span class="stringliteral">&quot;\r\nNested BeginPaint() calls, please fix Your app!&quot;</span>);</div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;                <a class="code" href="a00644.html#abf0325ba752a15637a55bb0d21285282">DeleteHrgnClip</a>(pdce);</div>
<div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160;            }</div>
<div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160; </div>
<div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00798"></a><span class="lineno">  798</span>&#160;<span class="comment">             * If we matched exactly, no recomputation necessary</span></div>
<div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;<span class="comment">             * (we found a CS_OWNDC or a CS_CLASSDC that is already set up)</span></div>
<div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160;<span class="comment">             * Otherwise, we have a CS_CLASSDC that needs recomputation.</span></div>
<div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;            <span class="comment">//if (pdce-&gt;pwndOrg == pwndOrg) {</span></div>
<div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160;            <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a> == pwndOrg &amp;&amp; (bpwndOrgVisible &amp;&amp;</div>
<div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;                    !(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_PWNDORGINVISIBLE))){</div>
<div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160;                <span class="keywordflow">goto</span> HaveComputedEntry;</div>
<div class="line"><a name="l00806"></a><span class="lineno">  806</span>&#160;            }</div>
<div class="line"><a name="l00807"></a><span class="lineno">  807</span>&#160; </div>
<div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;            <span class="keywordflow">goto</span> RecomputeEntry;</div>
<div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160;        }</div>
<div class="line"><a name="l00810"></a><span class="lineno">  810</span>&#160; </div>
<div class="line"><a name="l00811"></a><span class="lineno">  811</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00812"></a><span class="lineno">  812</span>&#160;<span class="comment">         * If we got this far, we couldn&#39;t find the DC.</span></div>
<div class="line"><a name="l00813"></a><span class="lineno">  813</span>&#160;<span class="comment">         * This should never happen!</span></div>
<div class="line"><a name="l00814"></a><span class="lineno">  814</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00815"></a><span class="lineno">  815</span>&#160;        <a class="code" href="a00371.html#a01c4659626880ba56745765a3580a36b">RIPMSG0</a>(<a class="code" href="a00371.html#a41f433389f20db57f042022a662e96de">RIP_WARNING</a>, <span class="stringliteral">&quot;couldn&#39;t find DC bad code path&quot;</span>);</div>
<div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160; </div>
<div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160;NullExit:</div>
<div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160; </div>
<div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160;        GreUnlockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l00820"></a><span class="lineno">  820</span>&#160;        <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00821"></a><span class="lineno">  821</span>&#160; </div>
<div class="line"><a name="l00822"></a><span class="lineno">  822</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00823"></a><span class="lineno">  823</span>&#160; </div>
<div class="line"><a name="l00824"></a><span class="lineno">  824</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00825"></a><span class="lineno">  825</span>&#160;<span class="comment">         * Make a quick pass through the cache, looking for an</span></div>
<div class="line"><a name="l00826"></a><span class="lineno">  826</span>&#160;<span class="comment">         * exact match.</span></div>
<div class="line"><a name="l00827"></a><span class="lineno">  827</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00828"></a><span class="lineno">  828</span>&#160;SearchAgain:</div>
<div class="line"><a name="l00829"></a><span class="lineno">  829</span>&#160; </div>
<div class="line"><a name="l00830"></a><span class="lineno">  830</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l00831"></a><span class="lineno">  831</span>&#160;        <span class="keywordflow">if</span> (fDisableCache)</div>
<div class="line"><a name="l00832"></a><span class="lineno">  832</span>&#160;            <span class="keywordflow">goto</span> SearchFailed;</div>
<div class="line"><a name="l00833"></a><span class="lineno">  833</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00834"></a><span class="lineno">  834</span>&#160; </div>
<div class="line"><a name="l00835"></a><span class="lineno">  835</span>&#160;        <span class="keywordflow">for</span> (ppdce = &amp;<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; (pdce = *ppdce); ppdce = &amp;pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l00836"></a><span class="lineno">  836</span>&#160; </div>
<div class="line"><a name="l00837"></a><span class="lineno">  837</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00838"></a><span class="lineno">  838</span>&#160;<span class="comment">             * If we find an entry that is not in use and whose clip flags</span></div>
<div class="line"><a name="l00839"></a><span class="lineno">  839</span>&#160;<span class="comment">             * and clip window match, we can use it.</span></div>
<div class="line"><a name="l00840"></a><span class="lineno">  840</span>&#160;<span class="comment">             *</span></div>
<div class="line"><a name="l00841"></a><span class="lineno">  841</span>&#160;<span class="comment">             * NOTE: DCX_INTERSECT/EXCLUDERGN cache entries always have</span></div>
<div class="line"><a name="l00842"></a><span class="lineno">  842</span>&#160;<span class="comment">             * DCX_INUSE set, so we&#39;ll never erroneously match one here.</span></div>
<div class="line"><a name="l00843"></a><span class="lineno">  843</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00844"></a><span class="lineno">  844</span>&#160;            <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; (DCX_INTERSECTRGN | DCX_EXCLUDERGN)) ||</div>
<div class="line"><a name="l00845"></a><span class="lineno">  845</span>&#160;                       (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INUSE));</div>
<div class="line"><a name="l00846"></a><span class="lineno">  846</span>&#160; </div>
<div class="line"><a name="l00847"></a><span class="lineno">  847</span>&#160;            <span class="keywordflow">if</span> ((pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a> == pwndClip) &amp;&amp;</div>
<div class="line"><a name="l00848"></a><span class="lineno">  848</span>&#160;                (flagsMatch == (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; (DCX_MATCHMASK | DCX_INUSE | DCX_INVALID)))) {</div>
<div class="line"><a name="l00849"></a><span class="lineno">  849</span>&#160; </div>
<div class="line"><a name="l00850"></a><span class="lineno">  850</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l00851"></a><span class="lineno">  851</span>&#160;<span class="comment">                 * Special case for icon - bug 9103 (win31)</span></div>
<div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160;                <span class="keywordflow">if</span> (TestWF(pwndClip, WFMINIMIZED) &amp;&amp;</div>
<div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160;                    (pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a> != pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a>)) {</div>
<div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160;                    <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00856"></a><span class="lineno">  856</span>&#160;                }</div>
<div class="line"><a name="l00857"></a><span class="lineno">  857</span>&#160; </div>
<div class="line"><a name="l00858"></a><span class="lineno">  858</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l00859"></a><span class="lineno">  859</span>&#160;<span class="comment">                 * If the pwndOrg of the DC we found is not visible and</span></div>
<div class="line"><a name="l00860"></a><span class="lineno">  860</span>&#160;<span class="comment">                 * the pwndOrg we&#39;re looking for is visble, then</span></div>
<div class="line"><a name="l00861"></a><span class="lineno">  861</span>&#160;<span class="comment">                 * the visrgn is no good, we can&#39;t reuse it so keep</span></div>
<div class="line"><a name="l00862"></a><span class="lineno">  862</span>&#160;<span class="comment">                 * looking.</span></div>
<div class="line"><a name="l00863"></a><span class="lineno">  863</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l00864"></a><span class="lineno">  864</span>&#160;                <span class="keywordflow">if</span> (bpwndOrgVisible &amp;&amp; pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_PWNDORGINVISIBLE) {</div>
<div class="line"><a name="l00865"></a><span class="lineno">  865</span>&#160;                    <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00866"></a><span class="lineno">  866</span>&#160;                }</div>
<div class="line"><a name="l00867"></a><span class="lineno">  867</span>&#160; </div>
<div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;<span class="comment">                 * Set INUSE before performing any GDI operations, just</span></div>
<div class="line"><a name="l00870"></a><span class="lineno">  870</span>&#160;<span class="comment">                 * in case DCHook() has a mind to recalculate the visrgn...</span></div>
<div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_INUSE;</div>
<div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160; </div>
<div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160;<span class="comment">                 * We found an entry with the proper visrgn.</span></div>
<div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160;<span class="comment">                 * If the origin doesn&#39;t match, update the CE and reset it.</span></div>
<div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160;                <span class="keywordflow">if</span> (pwndOrg != pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>) {</div>
<div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;                    <span class="comment">/*</span></div>
<div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;<span class="comment">                     * Need to flush any dirty rectangle stuff now.</span></div>
<div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160;<span class="comment">                     */</span></div>
<div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;                    <a class="code" href="a00860.html#acb4818d4adf72ca6c001f50c5f11020d">SpbCheckDce</a>(pdce);</div>
<div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160; </div>
<div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;                    pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a> = pwndOrg;</div>
<div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;                    <a class="code" href="a00644.html#af26b19776903d244c87630df83f7c48f">ResetOrg</a>(NULL, pdce);</div>
<div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160;                }</div>
<div class="line"><a name="l00887"></a><span class="lineno">  887</span>&#160; </div>
<div class="line"><a name="l00888"></a><span class="lineno">  888</span>&#160;                <span class="keywordflow">goto</span> HaveComputedEntry;</div>
<div class="line"><a name="l00889"></a><span class="lineno">  889</span>&#160;            }</div>
<div class="line"><a name="l00890"></a><span class="lineno">  890</span>&#160;        }</div>
<div class="line"><a name="l00891"></a><span class="lineno">  891</span>&#160; </div>
<div class="line"><a name="l00892"></a><span class="lineno">  892</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l00893"></a><span class="lineno">  893</span>&#160;SearchFailed:</div>
<div class="line"><a name="l00894"></a><span class="lineno">  894</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00895"></a><span class="lineno">  895</span>&#160; </div>
<div class="line"><a name="l00896"></a><span class="lineno">  896</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00897"></a><span class="lineno">  897</span>&#160;<span class="comment">         * Couldn&#39;t find an exact match.  Find some invalid or non-inuse</span></div>
<div class="line"><a name="l00898"></a><span class="lineno">  898</span>&#160;<span class="comment">         * entry we can reuse.</span></div>
<div class="line"><a name="l00899"></a><span class="lineno">  899</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00900"></a><span class="lineno">  900</span>&#160;        ppdceNotInUse = NULL;</div>
<div class="line"><a name="l00901"></a><span class="lineno">  901</span>&#160;        <span class="keywordflow">for</span> (ppdce = &amp;<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; (pdce = *ppdce); ppdce = &amp;pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l00902"></a><span class="lineno">  902</span>&#160; </div>
<div class="line"><a name="l00903"></a><span class="lineno">  903</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00904"></a><span class="lineno">  904</span>&#160;<span class="comment">             * Skip non-cache entries</span></div>
<div class="line"><a name="l00905"></a><span class="lineno">  905</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00906"></a><span class="lineno">  906</span>&#160;            <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_CACHE))</div>
<div class="line"><a name="l00907"></a><span class="lineno">  907</span>&#160;                <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00908"></a><span class="lineno">  908</span>&#160; </div>
<div class="line"><a name="l00909"></a><span class="lineno">  909</span>&#160;            <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INVALID) {</div>
<div class="line"><a name="l00910"></a><span class="lineno">  910</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00911"></a><span class="lineno">  911</span>&#160;            } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INUSE)) {</div>
<div class="line"><a name="l00912"></a><span class="lineno">  912</span>&#160; </div>
<div class="line"><a name="l00913"></a><span class="lineno">  913</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l00914"></a><span class="lineno">  914</span>&#160;<span class="comment">                 * Remember the non-inuse one, but keep looking for an invalid.</span></div>
<div class="line"><a name="l00915"></a><span class="lineno">  915</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l00916"></a><span class="lineno">  916</span>&#160;                ppdceNotInUse = ppdce;</div>
<div class="line"><a name="l00917"></a><span class="lineno">  917</span>&#160;            }</div>
<div class="line"><a name="l00918"></a><span class="lineno">  918</span>&#160;        }</div>
<div class="line"><a name="l00919"></a><span class="lineno">  919</span>&#160; </div>
<div class="line"><a name="l00920"></a><span class="lineno">  920</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00921"></a><span class="lineno">  921</span>&#160;<span class="comment">         * If we broke out of the loop, we found an invalid entry to reuse.</span></div>
<div class="line"><a name="l00922"></a><span class="lineno">  922</span>&#160;<span class="comment">         * Otherwise see if we found a non-inuse entry to reuse.</span></div>
<div class="line"><a name="l00923"></a><span class="lineno">  923</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00924"></a><span class="lineno">  924</span>&#160;        <span class="keywordflow">if</span> (pdce == NULL &amp;&amp; ((ppdce = ppdceNotInUse) == NULL)) {</div>
<div class="line"><a name="l00925"></a><span class="lineno">  925</span>&#160; </div>
<div class="line"><a name="l00926"></a><span class="lineno">  926</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l00927"></a><span class="lineno">  927</span>&#160;<span class="comment">             * Create another DCE if we need it.</span></div>
<div class="line"><a name="l00928"></a><span class="lineno">  928</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l00929"></a><span class="lineno">  929</span>&#160;            <span class="keywordflow">if</span> (!<a class="code" href="a00644.html#ac94f19fd4bf35ebf88eaea575f87bc0d">CreateCacheDC</a>(pwndOrg,</div>
<div class="line"><a name="l00930"></a><span class="lineno">  930</span>&#160;                               (DCX_INVALID | DCX_CACHE | DCX_NEEDFONT))) {</div>
<div class="line"><a name="l00931"></a><span class="lineno">  931</span>&#160;                <span class="keywordflow">goto</span> NullExit;</div>
<div class="line"><a name="l00932"></a><span class="lineno">  932</span>&#160;            }</div>
<div class="line"><a name="l00933"></a><span class="lineno">  933</span>&#160; </div>
<div class="line"><a name="l00934"></a><span class="lineno">  934</span>&#160;            <span class="keywordflow">goto</span> SearchAgain;</div>
<div class="line"><a name="l00935"></a><span class="lineno">  935</span>&#160;        }</div>
<div class="line"><a name="l00936"></a><span class="lineno">  936</span>&#160; </div>
<div class="line"><a name="l00937"></a><span class="lineno">  937</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00938"></a><span class="lineno">  938</span>&#160;<span class="comment">         * We&#39;ve chosen an entry to reuse: now fill it in and recompute it.</span></div>
<div class="line"><a name="l00939"></a><span class="lineno">  939</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00940"></a><span class="lineno">  940</span>&#160;        pdce = *ppdce;</div>
<div class="line"><a name="l00941"></a><span class="lineno">  941</span>&#160; </div>
<div class="line"><a name="l00942"></a><span class="lineno">  942</span>&#160;RecomputeEntry:</div>
<div class="line"><a name="l00943"></a><span class="lineno">  943</span>&#160; </div>
<div class="line"><a name="l00944"></a><span class="lineno">  944</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00945"></a><span class="lineno">  945</span>&#160;<span class="comment">         * Any non-invalid entries that we reuse might still have some bounds</span></div>
<div class="line"><a name="l00946"></a><span class="lineno">  946</span>&#160;<span class="comment">         * that need to be used to invalidate SPBs.  Apply them here.</span></div>
<div class="line"><a name="l00947"></a><span class="lineno">  947</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00948"></a><span class="lineno">  948</span>&#160;        <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INVALID))</div>
<div class="line"><a name="l00949"></a><span class="lineno">  949</span>&#160;            <a class="code" href="a00860.html#acb4818d4adf72ca6c001f50c5f11020d">SpbCheckDce</a>(pdce);</div>
<div class="line"><a name="l00950"></a><span class="lineno">  950</span>&#160; </div>
<div class="line"><a name="l00951"></a><span class="lineno">  951</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00952"></a><span class="lineno">  952</span>&#160;<span class="comment">         * We want to compute only the matchable visrgn at first,</span></div>
<div class="line"><a name="l00953"></a><span class="lineno">  953</span>&#160;<span class="comment">         * so we don&#39;t set up hrgnClip, or set the EXCLUDERGN or INTERSECTRGN</span></div>
<div class="line"><a name="l00954"></a><span class="lineno">  954</span>&#160;<span class="comment">         * bits yet -- we&#39;ll deal with those later.</span></div>
<div class="line"><a name="l00955"></a><span class="lineno">  955</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00956"></a><span class="lineno">  956</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> = flagsMatch | DCX_INUSE;</div>
<div class="line"><a name="l00957"></a><span class="lineno">  957</span>&#160; </div>
<div class="line"><a name="l00958"></a><span class="lineno">  958</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00959"></a><span class="lineno">  959</span>&#160;<span class="comment">         * Now recompute the visrgn (minus any hrgnClip shenanigans)</span></div>
<div class="line"><a name="l00960"></a><span class="lineno">  960</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00961"></a><span class="lineno">  961</span>&#160;        hrgn = NULL;</div>
<div class="line"><a name="l00962"></a><span class="lineno">  962</span>&#160;        <span class="keywordflow">if</span> (<a class="code" href="a00899.html#ab5b6a53d2b84dedad66b13f7f4b8c035">CalcVisRgn</a>(&amp;hrgn, pwndOrg, pwndClip, flagsMatch) == FALSE) {</div>
<div class="line"><a name="l00963"></a><span class="lineno">  963</span>&#160;            pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_PWNDORGINVISIBLE;</div>
<div class="line"><a name="l00964"></a><span class="lineno">  964</span>&#160;        }</div>
<div class="line"><a name="l00965"></a><span class="lineno">  965</span>&#160; </div>
<div class="line"><a name="l00966"></a><span class="lineno">  966</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>        = pwndOrg;</div>
<div class="line"><a name="l00967"></a><span class="lineno">  967</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a>       = pwndClip;</div>
<div class="line"><a name="l00968"></a><span class="lineno">  968</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a>       = NULL;      <span class="comment">// Just in case...</span></div>
<div class="line"><a name="l00969"></a><span class="lineno">  969</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> = NULL;</div>
<div class="line"><a name="l00970"></a><span class="lineno">  970</span>&#160; </div>
<div class="line"><a name="l00971"></a><span class="lineno">  971</span>&#160;        <a class="code" href="a00644.html#af26b19776903d244c87630df83f7c48f">ResetOrg</a>(hrgn, pdce);</div>
<div class="line"><a name="l00972"></a><span class="lineno">  972</span>&#160; </div>
<div class="line"><a name="l00973"></a><span class="lineno">  973</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00974"></a><span class="lineno">  974</span>&#160;<span class="comment">         * When we arrive here, pdce (and *ppdce) point to</span></div>
<div class="line"><a name="l00975"></a><span class="lineno">  975</span>&#160;<span class="comment">         * a cache entry whose visrgn and origin are set up.</span></div>
<div class="line"><a name="l00976"></a><span class="lineno">  976</span>&#160;<span class="comment">         * All that remains to be done is to deal with EXCLUDE/INTERSECTRGN</span></div>
<div class="line"><a name="l00977"></a><span class="lineno">  977</span>&#160;<span class="comment">         * and DCX_NEEDSFONT.</span></div>
<div class="line"><a name="l00978"></a><span class="lineno">  978</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00979"></a><span class="lineno">  979</span>&#160;HaveComputedEntry:</div>
<div class="line"><a name="l00980"></a><span class="lineno">  980</span>&#160; </div>
<div class="line"><a name="l00981"></a><span class="lineno">  981</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00982"></a><span class="lineno">  982</span>&#160;<span class="comment">         * If the window clipping flags have changed in the window</span></div>
<div class="line"><a name="l00983"></a><span class="lineno">  983</span>&#160;<span class="comment">         * since the last time this dc was invalidated, then recompute</span></div>
<div class="line"><a name="l00984"></a><span class="lineno">  984</span>&#160;<span class="comment">         * this dc entry.</span></div>
<div class="line"><a name="l00985"></a><span class="lineno">  985</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00986"></a><span class="lineno">  986</span>&#160;        <span class="keywordflow">if</span> ((pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_MATCHMASK) != (flags &amp; DCX_MATCHMASK))</div>
<div class="line"><a name="l00987"></a><span class="lineno">  987</span>&#160;            <span class="keywordflow">goto</span> RecomputeEntry;</div>
<div class="line"><a name="l00988"></a><span class="lineno">  988</span>&#160; </div>
<div class="line"><a name="l00989"></a><span class="lineno">  989</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00990"></a><span class="lineno">  990</span>&#160;<span class="comment">         * Let&#39;s check these assertions just in case...</span></div>
<div class="line"><a name="l00991"></a><span class="lineno">  991</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00992"></a><span class="lineno">  992</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(pdce);</div>
<div class="line"><a name="l00993"></a><span class="lineno">  993</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(*ppdce == pdce);</div>
<div class="line"><a name="l00994"></a><span class="lineno">  994</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INUSE);</div>
<div class="line"><a name="l00995"></a><span class="lineno">  995</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INVALID));</div>
<div class="line"><a name="l00996"></a><span class="lineno">  996</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>((pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_MATCHMASK) == (flags &amp; DCX_MATCHMASK));</div>
<div class="line"><a name="l00997"></a><span class="lineno">  997</span>&#160; </div>
<div class="line"><a name="l00998"></a><span class="lineno">  998</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00999"></a><span class="lineno">  999</span>&#160;<span class="comment">         * Move the dce to the head of the list so it&#39;s easy to find later.</span></div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>&#160;        <span class="keywordflow">if</span> (pdce != <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>) {</div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>&#160;            *ppdce = pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>;</div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>&#160;            pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a> = <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>;</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>&#160;            <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a> = pdce;</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>&#160;        }</div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>&#160; </div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>&#160;<span class="comment">         * Time to deal with DCX_INTERSECTRGN or DCX_EXCLUDERGN.</span></div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>&#160;<span class="comment">         *</span></div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>&#160;<span class="comment">         * We handle these two bits specially, because cache entries</span></div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>&#160;<span class="comment">         * with these bits set cannot be reused with the bits set.  This</span></div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>&#160;<span class="comment">         * is because the area described in hrgnClip would have to be</span></div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>&#160;<span class="comment">         * compared along with the bit, which is a pain, especially since</span></div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>&#160;<span class="comment">         * they&#39;d never match very often anyhow.</span></div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>&#160;<span class="comment">         *</span></div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>&#160;<span class="comment">         * What we do instead is to save the visrgn of the window before</span></div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>&#160;<span class="comment">         * applying either of these two flags, which is then restored</span></div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>&#160;<span class="comment">         * at ReleaseCacheDC() time, along with the clearing of these bits.</span></div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>&#160;<span class="comment">         * This effectively converts a cache entry with either of these</span></div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>&#160;<span class="comment">         * bits set into a &quot;normal&quot; cache entry that can be matched.</span></div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>&#160;        <span class="keywordflow">if</span> (flags &amp; DCX_INTERSECTRGN) {</div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>&#160; </div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>&#160;            <span class="keywordflow">if</span> (hrgnClip != MAXREGION) {</div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>&#160; </div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>&#160;<span class="comment">                 * Save the visrgn for reuse on ReleaseDC().</span></div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>&#160;<span class="comment">                 * (do this BEFORE we set hrgnClip &amp; pdce-&gt;flag bit,</span></div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>&#160;<span class="comment">                 * so that if a DCHook() callback occurs it recalculates</span></div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>&#160;<span class="comment">                 * without hrgnClip)</span></div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>&#160;                <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a> != NULL)</div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>&#160;                    <a class="code" href="a00371.html#a01c4659626880ba56745765a3580a36b">RIPMSG0</a>(<a class="code" href="a00371.html#afa5f32de88404289ec03cd2c0e61e94f">RIP_ERROR</a>, <span class="stringliteral">&quot;Nested SaveVisRgn attempt in _GetDCEx&quot;</span>);</div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>&#160; </div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>&#160;<span class="comment">                 * get the current vis region into hrgnSavedVis.  Temporarily</span></div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>&#160;<span class="comment">                 * store a dummy one in the DC.</span></div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>&#160; </div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a> = GreCreateRectRgn(0,0,0,0);</div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>&#160; </div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>&#160;                GreSelectVisRgn(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>,pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a>, NULL, SVR_SWAP);</div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>&#160; </div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a> = hrgnClip;</div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>&#160; </div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>&#160;                <span class="keywordflow">if</span> (flags &amp; DCX_NODELETERGN)</div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>&#160;                    pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_NODELETERGN;</div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>&#160; </div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_INTERSECTRGN;</div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>&#160; </div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>&#160;                <span class="keywordflow">if</span> (hrgnClip == NULL) {</div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>&#160; </div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>&#160;                    GreSetRectRgn(<a class="code" href="a03257.html#a6cdf8902d16435dff1e0c8bc95783563">hrgnGDC</a>, 0, 0, 0, 0);</div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>&#160;                    pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> = NULL;</div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>&#160; </div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>&#160; </div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>&#160;                    IntersectRgn(<a class="code" href="a03257.html#a6cdf8902d16435dff1e0c8bc95783563">hrgnGDC</a>, pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a>, hrgnClip);</div>
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>&#160; </div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>&#160;                    <span class="comment">/*</span></div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>&#160;<span class="comment">                     * Make a copy of the hrgnClip and make it public</span></div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>&#160;<span class="comment">                     * so that we can use it in calculations in HungDraw.</span></div>
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>&#160;<span class="comment">                     */</span></div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>&#160;                    pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> = GreCreateRectRgn(0, 0, 0, 0);</div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>&#160;                    CopyRgn(pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a>, hrgnClip);</div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>&#160;                    GreSetRegionOwner(pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a>, OBJECT_OWNER_PUBLIC);</div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>&#160;                }</div>
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>&#160; </div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>&#160;<span class="comment">                 * Clear the SAVEDRGNINVALID bit, since we&#39;re just</span></div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>&#160;<span class="comment">                 * about to set it properly now.  If the dce later</span></div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>&#160;<span class="comment">                 * gets invalidated, it&#39;ll set this bit so we know</span></div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>&#160;<span class="comment">                 * to recompute it when we restore the visrgn.</span></div>
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp;= ~DCX_SAVEDRGNINVALID;</div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>&#160; </div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>&#160;<span class="comment">                 * Select in the new region.  we use the SWAP_REGION mode</span></div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>&#160;<span class="comment">                 * so that hrgnGDC always has a valid rgn</span></div>
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>&#160; </div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>&#160;                GreSelectVisRgn(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>, <a class="code" href="a03257.html#a6cdf8902d16435dff1e0c8bc95783563">hrgnGDC</a>, NULL, SVR_SWAP);</div>
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>&#160;            }</div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (flags &amp; DCX_EXCLUDERGN) {</div>
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>&#160; </div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>&#160;            <span class="keywordflow">if</span> (hrgnClip != NULL) {</div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>&#160; </div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>&#160;<span class="comment">                 * Save the visrgn for reuse on ReleaseDC().</span></div>
<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>&#160;<span class="comment">                 * (do this BEFORE we set hrgnClip &amp; pdce-&gt;flag bit,</span></div>
<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>&#160;<span class="comment">                 * so that if a DCHook() callback occurs it recalculates</span></div>
<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>&#160;<span class="comment">                 * without hrgnClip)</span></div>
<div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>&#160;                <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a> != NULL)</div>
<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>&#160;                    <a class="code" href="a00371.html#a01c4659626880ba56745765a3580a36b">RIPMSG0</a>(<a class="code" href="a00371.html#afa5f32de88404289ec03cd2c0e61e94f">RIP_ERROR</a>, <span class="stringliteral">&quot;Nested SaveVisRgn attempt in _GetDCEx&quot;</span>);</div>
<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>&#160;<span class="comment">                 * get the current vis region into hrgnSavedVis.  Temporarily</span></div>
<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>&#160;<span class="comment">                 * store a dummy one in the DC.</span></div>
<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a> = GreCreateRectRgn(0,0,0,0);</div>
<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>&#160; </div>
<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>&#160;                GreSelectVisRgn(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>,pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a>, NULL, SVR_SWAP);</div>
<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>&#160; </div>
<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a> = hrgnClip;</div>
<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>&#160; </div>
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>&#160;                <span class="keywordflow">if</span> (flags &amp; DCX_NODELETERGN)</div>
<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>&#160;                    pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_NODELETERGN;</div>
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>&#160; </div>
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_EXCLUDERGN;</div>
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>&#160; </div>
<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>&#160;                <span class="keywordflow">if</span> (hrgnClip == MAXREGION) {</div>
<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>&#160; </div>
<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>&#160;                    GreSetRectRgn(<a class="code" href="a03257.html#a6cdf8902d16435dff1e0c8bc95783563">hrgnGDC</a>, 0, 0, 0, 0);</div>
<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>&#160;                    pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> = MAXREGION;</div>
<div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>&#160; </div>
<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>&#160; </div>
<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>&#160;                    SubtractRgn(<a class="code" href="a03257.html#a6cdf8902d16435dff1e0c8bc95783563">hrgnGDC</a>, pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a>, hrgnClip);</div>
<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>&#160; </div>
<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>&#160;                    <span class="comment">/*</span></div>
<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>&#160;<span class="comment">                     * Make a copy of the hrgnClip and make it public</span></div>
<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>&#160;<span class="comment">                     * so that we can use it in calculations in HungDraw.</span></div>
<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>&#160;<span class="comment">                     */</span></div>
<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>&#160;                    pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> = GreCreateRectRgn(0, 0, 0, 0);</div>
<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>&#160;                    CopyRgn(pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a>, hrgnClip);</div>
<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>&#160;                    GreSetRegionOwner(pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a>, OBJECT_OWNER_PUBLIC);</div>
<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>&#160;                }</div>
<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>&#160; </div>
<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>&#160;<span class="comment">                 * Clear the SAVEDRGNINVALID bit, since we&#39;re just</span></div>
<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>&#160;<span class="comment">                 * about to set it properly now.  If the dce later</span></div>
<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>&#160;<span class="comment">                 * gets invalidated, it&#39;ll set this bit so we know</span></div>
<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>&#160;<span class="comment">                 * to recompute it when we restore the visrgn.</span></div>
<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp;= ~DCX_SAVEDRGNINVALID;</div>
<div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>&#160; </div>
<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>&#160;<span class="comment">                 * Select in the new region.  we use the SWAP_REGION mode</span></div>
<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>&#160;<span class="comment">                 * so that hrgnGDC always has a valid rgn</span></div>
<div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>&#160; </div>
<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>&#160;                GreSelectVisRgn(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>, <a class="code" href="a03257.html#a6cdf8902d16435dff1e0c8bc95783563">hrgnGDC</a>, NULL, SVR_SWAP);</div>
<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>&#160;            }</div>
<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>&#160;        }</div>
<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>&#160;    }</div>
<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>&#160; </div>
<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>&#160;<span class="comment">     * Whew! Set ownership and return the bloody DC.</span></div>
<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>&#160;<span class="comment">     * Only set ownership for cache dcs.  Own dcs have already been owned.</span></div>
<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>&#160;<span class="comment">     * The reason why we don&#39;t want to set the ownership over again is</span></div>
<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>&#160;<span class="comment">     * because the console sets its owndcs to PUBLIC so gdisrv can use</span></div>
<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>&#160;<span class="comment">     * them without asserting.  We don&#39;t want to set the ownership back</span></div>
<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>&#160;<span class="comment">     * again.</span></div>
<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_CACHE) {</div>
<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>&#160; </div>
<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>&#160;        <span class="keywordflow">if</span> (!GreSetDCOwner(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>, OBJECT_OWNER_CURRENT)) {</div>
<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>&#160;            <a class="code" href="a00371.html#a31aafffb49dfe98bdc749c9b35c90162">RIPMSG1</a>(<a class="code" href="a00371.html#a41f433389f20db57f042022a662e96de">RIP_WARNING</a>, <span class="stringliteral">&quot;GetDCEx: SetDCOwner Failed %lX&quot;</span>, pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>);</div>
<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>&#160;        }</div>
<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>&#160; </div>
<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>&#160;<span class="comment">         * Decrement the Free DCE Count.  This should always be &gt;= 0,</span></div>
<div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>&#160;<span class="comment">         * since we&#39;ll create a new dce if the cache is all in use.</span></div>
<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>&#160;        <a class="code" href="a00644.html#a31f5ecc6a84f44341dd408cf54f41a12">gnDCECount</a>--;</div>
<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(<a class="code" href="a00644.html#a31f5ecc6a84f44341dd408cf54f41a12">gnDCECount</a> &gt;= 0);</div>
<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>&#160; </div>
<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#ac00f1663b75594a986bb299216d16bda">ptiOwner</a> = <a class="code" href="a00257.html#a8315d2c807ba18ba9e528c40614b6173">PtiCurrent</a>();</div>
<div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>&#160;    }</div>
<div class="line"><a name="l01174"></a><span class="lineno"> 1174</span>&#160; </div>
<div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>&#160;<span class="comment">     * Last but not least, check to see if we need to select in the</span></div>
<div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>&#160;<span class="comment">     * fixed-pitch system font for an old application.  We don&#39;t</span></div>
<div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>&#160;<span class="comment">     * want to diddle the font of CS_OWNDC or CS_CLASSDC guys, though.</span></div>
<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>&#160;    <span class="keywordflow">if</span> ((flags &amp; DCX_NEEDFONT) &amp;&amp; (flags &amp; DCX_CACHE))</div>
<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>&#160;        <a class="code" href="a00644.html#ad358326cc1c73aca105306a9287e609f">SelectFixedFont</a>(pdce);</div>
<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>&#160; </div>
<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>&#160;    GreUnlockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>&#160; </div>
<div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>&#160;<span class="comment">     * Keep count of DCs assigned to the window, but be sure that no</span></div>
<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>&#160;<span class="comment">     * rollover occurs.  If the window is freed and this count is</span></div>
<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>&#160;<span class="comment">     * non-zero, a callback to the client must be made to free</span></div>
<div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>&#160;<span class="comment">     * the client-side DC.</span></div>
<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>&#160;<span class="comment">     * If the DC is DCX_PARENTCLIP, pdce-&gt;pwndClip == pwnd-&gt;pwndParent.</span></div>
<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>&#160;<span class="comment">     * The only advantage to incrementing the DC count of the parent</span></div>
<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>&#160;<span class="comment">     * also would be handle the case where a DCX_PARENTCLIP DC is</span></div>
<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>&#160;<span class="comment">     * retrieved, the parent of the window is changed and then the</span></div>
<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>&#160;<span class="comment">     * original parent is deleted.  This would only save one trip</span></div>
<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>&#160;<span class="comment">     * (at most) down the DC list in xxxFreeWindow so it&#39;s not</span></div>
<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>&#160;<span class="comment">     * worth the overhead.</span></div>
<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>&#160;    <span class="keywordflow">if</span> (pwnd-&gt;<a class="code" href="a02581.html#acd5ffb69aba2aab87ce8f5405a07b68e">cDC</a> != DCE_SIZE_DCLIMIT) {</div>
<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>&#160;        ++pwnd-&gt;<a class="code" href="a02581.html#acd5ffb69aba2aab87ce8f5405a07b68e">cDC</a>;</div>
<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>&#160;    }</div>
<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>&#160; </div>
<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>&#160;    <span class="keywordflow">return</span> pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>;</div>
<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00905_source.html#l00441">CalcVisRgn()</a>, <a class="el" href="a00365_source.html#l01420">tagWND::cDC</a>, <a class="el" href="a00644_source.html#l01325">CreateCacheDC()</a>, <a class="el" href="a00644_source.html#l01447">DelayedDestroyCacheDC()</a>, <a class="el" href="a00644_source.html#l00480">DeleteHrgnClip()</a>, <a class="el" href="a00563_source.html#l00175">DWORD</a>, <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a00644_source.html#l00022">gnDCECount</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00899_source.html#l02463">tagDCE::hrgnClip</a>, <a class="el" href="a00899_source.html#l02464">tagDCE::hrgnClipPublic</a>, <a class="el" href="a03257_source.html#l00444">hrgnGDC</a>, <a class="el" href="a00899_source.html#l02465">tagDCE::hrgnSavedVis</a>, <a class="el" href="a03728_source.html#l00456">IsVisible()</a>, <a class="el" href="a00365_source.html#l01403">tagWND::pcls</a>, <a class="el" href="a00365_source.html#l01331">tagCLS::pdce</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a>, <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a>, <a class="el" href="a00899_source.html#l01706">tagDESKTOP::pDeskInfo</a>, <a class="el" href="a00365_source.html#l01577">tagDISPLAYINFO::pDevLock</a>, <a class="el" href="a00263_source.html#l00526">PtiCurrent()</a>, <a class="el" href="a00899_source.html#l02467">tagDCE::ptiOwner</a>, <a class="el" href="a00899_source.html#l02462">tagDCE::pwndClip</a>, <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>, <a class="el" href="a00644_source.html#l00040">ResetOrg()</a>, <a class="el" href="a00371_source.html#l00028">RIP_ERROR</a>, <a class="el" href="a00371_source.html#l00029">RIP_WARNING</a>, <a class="el" href="a00371_source.html#l00131">RIPMSG0</a>, <a class="el" href="a00371_source.html#l00132">RIPMSG1</a>, <a class="el" href="a00899_source.html#l02288">tagTHREADINFO::rpdesk</a>, <a class="el" href="a00644_source.html#l00537">SelectFixedFont()</a>, <a class="el" href="a00860_source.html#l01000">SpbCheckDce()</a>, <a class="el" href="a00365_source.html#l01603">tagDESKTOPINFO::spwnd</a>, <a class="el" href="a00365_source.html#l01392">tagWND::spwndParent</a> , 以及 <a class="el" href="a00950_source.html#l00117">UserAssert</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l00066">_GetDC()</a>, <a class="el" href="a00644_source.html#l00120">_GetScreenDC()</a> , 以及 <a class="el" href="a00644_source.html#l00137">_GetWindowDC()</a>.</p>

</div>
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<a id="a50fb8ad81b743ff5102cc40b853ca47f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a50fb8ad81b743ff5102cc40b853ca47f">&#9670;&nbsp;</a></span>_GetScreenDC()</h2>

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<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">HDC _GetScreenDC </td>
          <td>(</td>
          <td class="paramtype">VOID&#160;</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00120">120</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;{</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="a00644.html#a40f384390d37443680be366bd973ab3e">_GetDCEx</a>(<a class="code" href="a00257.html#a8315d2c807ba18ba9e528c40614b6173">PtiCurrent</a>()-&gt;rpdesk-&gt;<a class="code" href="a02889.html#a76d4881aa4c15330103e83a80e6b5dc7">pDeskInfo</a>-&gt;<a class="code" href="a02609.html#a68937d60a6f49b7a8431db62b38ea721">spwnd</a>,</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;                    NULL,</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                    DCX_WINDOW | DCX_CACHE);</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00644_source.html#l00560">_GetDCEx()</a>, <a class="el" href="a00899_source.html#l02291">tagTHREADINFO::pDeskInfo</a>, <a class="el" href="a00263_source.html#l00526">PtiCurrent()</a> , 以及 <a class="el" href="a00365_source.html#l01603">tagDESKTOPINFO::spwnd</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00767_source.html#l00383">xxxMNCompute()</a>.</p>

</div>
</div>
<a id="a5fae5b77e79eae6c3c51799de993d74f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5fae5b77e79eae6c3c51799de993d74f">&#9670;&nbsp;</a></span>_GetWindowDC()</h2>

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<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">HDC _GetWindowDC </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a>&#160;</td>
          <td class="paramname"><em>pwnd</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00137">137</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;{</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160; </div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="preprocessor">#if 0</span></div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160; </div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="comment">     * For WIN31 and previous apps, we want to actually return back a</span></div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="comment">     * client DC.  Before WIN40, the window rect and client rect were the</span></div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="comment">     * same, and there was this terrible hack to grab the window dc when</span></div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;<span class="comment">     * painting because window DCs never clip anything.  Otherwise the</span></div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="comment">     * children of the minimized window would be clipped out of the fake</span></div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="comment">     * client area.  So apps would call GetWindowDC() to redraw their icons,</span></div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="comment">     * since GetDC() would clip empty if the window had a class icon.</span></div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    <span class="keywordflow">if</span> (TestWF(pwnd, WFMINIMIZED) &amp;&amp; !TestWF(pwnd, WFWIN40COMPAT))</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        <span class="keywordflow">return</span>(<a class="code" href="a00644.html#a40f384390d37443680be366bd973ab3e">_GetDCEx</a>(pwnd, hrgnClip, DCX_INTERNAL | DCX_CACHE | DCX_USESTYLE));</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160; </div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="a00644.html#a40f384390d37443680be366bd973ab3e">_GetDCEx</a>(pwnd, NULL, DCX_WINDOW | DCX_USESTYLE);</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00644_source.html#l00560">_GetDCEx()</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00599_source.html#l02424">_UserSoundSentryWorker()</a>, <a class="el" href="a00833_source.html#l01008">DrawCtlThumb()</a>, <a class="el" href="a00833_source.html#l01390">DrawInvertScrollArea()</a>, <a class="el" href="a00833_source.html#l01236">InvertScrollHilite()</a>, <a class="el" href="a03614_source.html#l05284">NtUserGetWindowDC()</a>, <a class="el" href="a00833_source.html#l01032">xxxDrawThumb()</a>, <a class="el" href="a00773_source.html#l01470">xxxMNInvertItem()</a>, <a class="el" href="a00833_source.html#l01313">xxxMoveThumb()</a>, <a class="el" href="a00671_source.html#l00694">xxxRedrawTitle()</a>, <a class="el" href="a00833_source.html#l02005">xxxSBWndProc()</a> , 以及 <a class="el" href="a00857_source.html#l00028">xxxSnapWindow()</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a1ec030500a19f775519fbaf16c15f814">&#9670;&nbsp;</a></span>_ReleaseDC()</h2>

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          <td class="memname">BOOL _ReleaseDC </td>
          <td>(</td>
          <td class="paramtype">HDC&#160;</td>
          <td class="paramname"><em>hdc</em></td><td>)</td>
          <td></td>
        </tr>
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<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00102">102</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;{</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    CheckCritIn();</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160; </div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    <span class="keywordflow">return</span> (<a class="code" href="a00644.html#a99c1c681a5ca832389887bfab954cdb7">ReleaseCacheDC</a>(hdc, FALSE) == DCE_NORELEASE ? FALSE : TRUE);</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">被这些函数引用 <a class="el" href="a00599_source.html#l02424">_UserSoundSentryWorker()</a>, <a class="el" href="a00833_source.html#l01008">DrawCtlThumb()</a>, <a class="el" href="a00833_source.html#l01390">DrawInvertScrollArea()</a>, <a class="el" href="a00890_source.html#l00525">DrawSwitchWndHilite()</a>, <a class="el" href="a00833_source.html#l01236">InvertScrollHilite()</a>, <a class="el" href="a00707_source.html#l00188">RedrawHungWindow()</a>, <a class="el" href="a00707_source.html#l00157">RedrawHungWindowFrame()</a>, <a class="el" href="a00644_source.html#l00360">UserReleaseDC()</a>, <a class="el" href="a00620_source.html#l00094">UT_InvertCaret()</a>, <a class="el" href="a00752_source.html#l00892">xxx_DrawAnimatedRects()</a>, <a class="el" href="a00671_source.html#l01146">xxxDefWindowProc()</a>, <a class="el" href="a00656_source.html#l00499">xxxDesktopWndProc()</a>, <a class="el" href="a00800_source.html#l01392">xxxDrawDragRect()</a>, <a class="el" href="a00833_source.html#l01032">xxxDrawThumb()</a>, <a class="el" href="a00671_source.html#l00647">xxxDWP_DoNCActivate()</a>, <a class="el" href="a00815_source.html#l00237">xxxFlushPalette()</a>, <a class="el" href="a00767_source.html#l00383">xxxMNCompute()</a>, <a class="el" href="a00773_source.html#l01470">xxxMNInvertItem()</a>, <a class="el" href="a00890_source.html#l01289">xxxMoveSwitchWndHilite()</a>, <a class="el" href="a00833_source.html#l01313">xxxMoveThumb()</a>, <a class="el" href="a00890_source.html#l00780">xxxPaintIconsInSwitchWindow()</a>, <a class="el" href="a00890_source.html#l00984">xxxPaintSwitchWindow()</a>, <a class="el" href="a00671_source.html#l00694">xxxRedrawTitle()</a>, <a class="el" href="a00833_source.html#l02005">xxxSBWndProc()</a>, <a class="el" href="a00836_source.html#l00731">xxxScrollWindowEx()</a>, <a class="el" href="a00857_source.html#l00028">xxxSnapWindow()</a> , 以及 <a class="el" href="a00614_source.html#l00039">xxxTrackCaptionButton()</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a6dbdb01326edbe1ee0e910e2210d7e7d">&#9670;&nbsp;</a></span>_WindowFromDC()</h2>

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          <td class="memname"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a> _WindowFromDC </td>
          <td>(</td>
          <td class="paramtype">HDC&#160;</td>
          <td class="paramname"><em>hdc</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l01807">1807</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l01809"></a><span class="lineno"> 1809</span>&#160;{</div>
<div class="line"><a name="l01810"></a><span class="lineno"> 1810</span>&#160;    <a class="code" href="a02909.html">PDCE</a> pdce;</div>
<div class="line"><a name="l01811"></a><span class="lineno"> 1811</span>&#160; </div>
<div class="line"><a name="l01812"></a><span class="lineno"> 1812</span>&#160;    <span class="keywordflow">for</span> (pdce = <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; pdce; pdce = pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l01813"></a><span class="lineno"> 1813</span>&#160; </div>
<div class="line"><a name="l01814"></a><span class="lineno"> 1814</span>&#160;        <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INUSE) || (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_CREATEDC))</div>
<div class="line"><a name="l01815"></a><span class="lineno"> 1815</span>&#160;            <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l01816"></a><span class="lineno"> 1816</span>&#160; </div>
<div class="line"><a name="l01817"></a><span class="lineno"> 1817</span>&#160;        <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a> == hdc)</div>
<div class="line"><a name="l01818"></a><span class="lineno"> 1818</span>&#160;            <span class="keywordflow">return</span> pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>;</div>
<div class="line"><a name="l01819"></a><span class="lineno"> 1819</span>&#160;    }</div>
<div class="line"><a name="l01820"></a><span class="lineno"> 1820</span>&#160; </div>
<div class="line"><a name="l01821"></a><span class="lineno"> 1821</span>&#160;    <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l01822"></a><span class="lineno"> 1822</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a>, <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a> , 以及 <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac94f19fd4bf35ebf88eaea575f87bc0d">&#9670;&nbsp;</a></span>CreateCacheDC()</h2>

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          <td class="memname">HDC CreateCacheDC </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a>&#160;</td>
          <td class="paramname"><em>pwndOrg</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a>&#160;</td>
          <td class="paramname"><em>flags</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l01325">1325</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l01328"></a><span class="lineno"> 1328</span>&#160;{</div>
<div class="line"><a name="l01329"></a><span class="lineno"> 1329</span>&#160;    <a class="code" href="a02909.html">PDCE</a> pdce;</div>
<div class="line"><a name="l01330"></a><span class="lineno"> 1330</span>&#160;    HDC  hdc;</div>
<div class="line"><a name="l01331"></a><span class="lineno"> 1331</span>&#160; </div>
<div class="line"><a name="l01332"></a><span class="lineno"> 1332</span>&#160;    <span class="keywordflow">if</span> ((pdce = (<a class="code" href="a02909.html">PDCE</a>)UserAllocPool(<span class="keyword">sizeof</span>(<a class="code" href="a02909.html">DCE</a>), TAG_DCE)) == NULL)</div>
<div class="line"><a name="l01333"></a><span class="lineno"> 1333</span>&#160;        <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l01334"></a><span class="lineno"> 1334</span>&#160; </div>
<div class="line"><a name="l01335"></a><span class="lineno"> 1335</span>&#160;    <span class="keywordflow">if</span> ((hdc = GreCreateDisplayDC(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a81f6c7e5df9c00e3f33e6e1a94ac75fc">hDev</a>, DCTYPE_DIRECT, FALSE)) == NULL) {</div>
<div class="line"><a name="l01336"></a><span class="lineno"> 1336</span>&#160;        UserFreePool(pdce);</div>
<div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>&#160;        <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>&#160;    }</div>
<div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>&#160; </div>
<div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>&#160;<span class="comment">     * Mark it as undeleteable so no application can delete it out of our</span></div>
<div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>&#160;<span class="comment">     * cache!</span></div>
<div class="line"><a name="l01343"></a><span class="lineno"> 1343</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01344"></a><span class="lineno"> 1344</span>&#160;    GreMarkUndeletableDC(hdc);</div>
<div class="line"><a name="l01345"></a><span class="lineno"> 1345</span>&#160; </div>
<div class="line"><a name="l01346"></a><span class="lineno"> 1346</span>&#160;    <span class="keywordflow">if</span> (flags &amp; DCX_OWNDC) {</div>
<div class="line"><a name="l01347"></a><span class="lineno"> 1347</span>&#160; </div>
<div class="line"><a name="l01348"></a><span class="lineno"> 1348</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>&#160;<span class="comment">         * Set the ownership of owndcs immediately: that way console can set</span></div>
<div class="line"><a name="l01350"></a><span class="lineno"> 1350</span>&#160;<span class="comment">         * the owernship to PUBLIC when it calls GetDC so that both the input</span></div>
<div class="line"><a name="l01351"></a><span class="lineno"> 1351</span>&#160;<span class="comment">         * thread and the service threads can use the same owndc.</span></div>
<div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>&#160;        GreSetDCOwner(hdc, OBJECT_OWNER_CURRENT);</div>
<div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#ac00f1663b75594a986bb299216d16bda">ptiOwner</a> = <a class="code" href="a00257.html#a8315d2c807ba18ba9e528c40614b6173">PtiCurrent</a>();</div>
<div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>&#160; </div>
<div class="line"><a name="l01356"></a><span class="lineno"> 1356</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>&#160; </div>
<div class="line"><a name="l01358"></a><span class="lineno"> 1358</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>&#160;<span class="comment">         * Otherwise it is a cache dc...  set its owner to none - nothing</span></div>
<div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>&#160;<span class="comment">         * is using it - equivalent of &quot;being in the cache&quot; but unaccessible</span></div>
<div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>&#160;<span class="comment">         * to other processes.</span></div>
<div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>&#160;        GreSetDCOwner(hdc, OBJECT_OWNER_NONE);</div>
<div class="line"><a name="l01364"></a><span class="lineno"> 1364</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#ac00f1663b75594a986bb299216d16bda">ptiOwner</a> = NULL;</div>
<div class="line"><a name="l01365"></a><span class="lineno"> 1365</span>&#160; </div>
<div class="line"><a name="l01366"></a><span class="lineno"> 1366</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>&#160;<span class="comment">         * Increment the available-cacheDC count.  Once this hits our</span></div>
<div class="line"><a name="l01368"></a><span class="lineno"> 1368</span>&#160;<span class="comment">         * threshold, then we can free-up some of the entries.</span></div>
<div class="line"><a name="l01369"></a><span class="lineno"> 1369</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01370"></a><span class="lineno"> 1370</span>&#160;        <a class="code" href="a00644.html#a31f5ecc6a84f44341dd408cf54f41a12">gnDCECount</a>++;</div>
<div class="line"><a name="l01371"></a><span class="lineno"> 1371</span>&#160;    }</div>
<div class="line"><a name="l01372"></a><span class="lineno"> 1372</span>&#160; </div>
<div class="line"><a name="l01373"></a><span class="lineno"> 1373</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01374"></a><span class="lineno"> 1374</span>&#160;<span class="comment">     * Link this entry into the cache entry list.</span></div>
<div class="line"><a name="l01375"></a><span class="lineno"> 1375</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01376"></a><span class="lineno"> 1376</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>      = <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>;</div>
<div class="line"><a name="l01377"></a><span class="lineno"> 1377</span>&#160;    <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a> = pdce;</div>
<div class="line"><a name="l01378"></a><span class="lineno"> 1378</span>&#160; </div>
<div class="line"><a name="l01379"></a><span class="lineno"> 1379</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>            = hdc;</div>
<div class="line"><a name="l01380"></a><span class="lineno"> 1380</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a>          = flags;</div>
<div class="line"><a name="l01381"></a><span class="lineno"> 1381</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>        = pwndOrg;</div>
<div class="line"><a name="l01382"></a><span class="lineno"> 1382</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a>       = pwndOrg;</div>
<div class="line"><a name="l01383"></a><span class="lineno"> 1383</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a>       = NULL;</div>
<div class="line"><a name="l01384"></a><span class="lineno"> 1384</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> = NULL;</div>
<div class="line"><a name="l01385"></a><span class="lineno"> 1385</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a>   = NULL;</div>
<div class="line"><a name="l01386"></a><span class="lineno"> 1386</span>&#160; </div>
<div class="line"><a name="l01387"></a><span class="lineno"> 1387</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>&#160;<span class="comment">     * If we&#39;re creating a permanent DC, then compute it now.</span></div>
<div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01390"></a><span class="lineno"> 1390</span>&#160;    <span class="keywordflow">if</span> (!(flags &amp; DCX_CACHE)) {</div>
<div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>&#160; </div>
<div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>&#160;<span class="comment">         * Set up the class DC now...</span></div>
<div class="line"><a name="l01394"></a><span class="lineno"> 1394</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01395"></a><span class="lineno"> 1395</span>&#160;        <span class="keywordflow">if</span> (TestCF(pwndOrg, CFCLASSDC))</div>
<div class="line"><a name="l01396"></a><span class="lineno"> 1396</span>&#160;            pwndOrg-&gt;<a class="code" href="a02581.html#a9ac6b15978318e3401ef9a878ccb40ac">pcls</a>-&gt;<a class="code" href="a02569.html#aa1f7797b3bd2c83cc0af24110b6d8f64">pdce</a> = pdce;</div>
<div class="line"><a name="l01397"></a><span class="lineno"> 1397</span>&#160; </div>
<div class="line"><a name="l01398"></a><span class="lineno"> 1398</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01399"></a><span class="lineno"> 1399</span>&#160;<span class="comment">         * Finish setting up DCE and force eventual visrgn calculation.</span></div>
<div class="line"><a name="l01400"></a><span class="lineno"> 1400</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01401"></a><span class="lineno"> 1401</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(!(flags &amp; DCX_WINDOW));</div>
<div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>&#160; </div>
<div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_INUSE;</div>
<div class="line"><a name="l01404"></a><span class="lineno"> 1404</span>&#160; </div>
<div class="line"><a name="l01405"></a><span class="lineno"> 1405</span>&#160;        <a class="code" href="a00644.html#a1c4d30db5baf9bd9210e666a55ec85ac">InvalidateDce</a>(pdce);</div>
<div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>&#160;    }</div>
<div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>&#160; </div>
<div class="line"><a name="l01408"></a><span class="lineno"> 1408</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01409"></a><span class="lineno"> 1409</span>&#160;<span class="comment">     * If there are any spb&#39;s around then enable bounds accumulation.</span></div>
<div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>&#160;    <span class="keywordflow">if</span> (AnySpbs())</div>
<div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>&#160;        GreGetBounds(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>, NULL, DCB_ENABLE | DCB_SET | DCB_WINDOWMGR);</div>
<div class="line"><a name="l01413"></a><span class="lineno"> 1413</span>&#160; </div>
<div class="line"><a name="l01414"></a><span class="lineno"> 1414</span>&#160;    <span class="keywordflow">return</span> pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>;</div>
<div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a00644_source.html#l00022">gnDCECount</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00365_source.html#l01576">tagDISPLAYINFO::hDev</a>, <a class="el" href="a00899_source.html#l02463">tagDCE::hrgnClip</a>, <a class="el" href="a00899_source.html#l02464">tagDCE::hrgnClipPublic</a>, <a class="el" href="a00899_source.html#l02465">tagDCE::hrgnSavedVis</a>, <a class="el" href="a00644_source.html#l00380">InvalidateDce()</a>, <a class="el" href="a00365_source.html#l01403">tagWND::pcls</a>, <a class="el" href="a00365_source.html#l01331">tagCLS::pdce</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a>, <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a>, <a class="el" href="a00263_source.html#l00526">PtiCurrent()</a>, <a class="el" href="a00899_source.html#l02467">tagDCE::ptiOwner</a>, <a class="el" href="a00899_source.html#l02462">tagDCE::pwndClip</a>, <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a> , 以及 <a class="el" href="a00950_source.html#l00117">UserAssert</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l00560">_GetDCEx()</a>, <a class="el" href="a00635_source.html#l00031">xxxCreateWindowExWOW()</a> , 以及 <a class="el" href="a00719_source.html#l00705">xxxLW_DCInit()</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a032fb1a6a955b0ec72e0412511d57ddc">&#9670;&nbsp;</a></span>DelayedDestroyCacheDC()</h2>

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          <td class="memname">VOID DelayedDestroyCacheDC </td>
          <td>(</td>
          <td class="paramtype">VOID&#160;</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l01447">1447</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>&#160;{</div>
<div class="line"><a name="l01449"></a><span class="lineno"> 1449</span>&#160;    <a class="code" href="a02909.html">PDCE</a> *ppdce;</div>
<div class="line"><a name="l01450"></a><span class="lineno"> 1450</span>&#160;    <a class="code" href="a02909.html">PDCE</a> pdce;</div>
<div class="line"><a name="l01451"></a><span class="lineno"> 1451</span>&#160; </div>
<div class="line"><a name="l01452"></a><span class="lineno"> 1452</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01453"></a><span class="lineno"> 1453</span>&#160;<span class="comment">     * Zip through the cache looking for a DCX_DESTROYTHIS hdc.</span></div>
<div class="line"><a name="l01454"></a><span class="lineno"> 1454</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01455"></a><span class="lineno"> 1455</span>&#160;    <span class="keywordflow">for</span> (ppdce = &amp;<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; *ppdce != NULL; ) {</div>
<div class="line"><a name="l01456"></a><span class="lineno"> 1456</span>&#160; </div>
<div class="line"><a name="l01457"></a><span class="lineno"> 1457</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01458"></a><span class="lineno"> 1458</span>&#160;<span class="comment">         * If we found a DCE on this thread that we tried to destroy</span></div>
<div class="line"><a name="l01459"></a><span class="lineno"> 1459</span>&#160;<span class="comment">         * earlier, try and destroy it again.</span></div>
<div class="line"><a name="l01460"></a><span class="lineno"> 1460</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01461"></a><span class="lineno"> 1461</span>&#160;        pdce = *ppdce;</div>
<div class="line"><a name="l01462"></a><span class="lineno"> 1462</span>&#160; </div>
<div class="line"><a name="l01463"></a><span class="lineno"> 1463</span>&#160;        <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_DESTROYTHIS)</div>
<div class="line"><a name="l01464"></a><span class="lineno"> 1464</span>&#160;            <a class="code" href="a00644.html#a7f629d5ea5347d4878f63af730734e45">DestroyCacheDC</a>(ppdce, pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>);</div>
<div class="line"><a name="l01465"></a><span class="lineno"> 1465</span>&#160; </div>
<div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>&#160;<span class="comment">         * Step to the next DC.  If the DC was deleted, there</span></div>
<div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>&#160;<span class="comment">         * is no need to calculate address of the next entry.</span></div>
<div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01470"></a><span class="lineno"> 1470</span>&#160;        <span class="keywordflow">if</span> (pdce == *ppdce)</div>
<div class="line"><a name="l01471"></a><span class="lineno"> 1471</span>&#160;            ppdce = &amp;pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>;</div>
<div class="line"><a name="l01472"></a><span class="lineno"> 1472</span>&#160;    }</div>
<div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>&#160; </div>
<div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>&#160;    PpiCurrent()-&gt;W32PF_Flags &amp;= ~W32PF_OWNDCCLEANUP;</div>
<div class="line"><a name="l01475"></a><span class="lineno"> 1475</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00644_source.html#l01486">DestroyCacheDC()</a>, <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a> , 以及 <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l00560">_GetDCEx()</a> , 以及 <a class="el" href="a00824_source.html#l03596">DestroyProcessInfo()</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#abf0325ba752a15637a55bb0d21285282">&#9670;&nbsp;</a></span>DeleteHrgnClip()</h2>

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          <td class="memname">VOID DeleteHrgnClip </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a>&#160;</td>
          <td class="paramname"><em>pdce</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00480">480</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;{</div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;<span class="comment">     * Clear these flags first in case we get a DCHook() callback...</span></div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp;= ~(DCX_EXCLUDERGN | DCX_INTERSECTRGN);</div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160; </div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;<span class="comment">     * Blow away pdce-&gt;hrgnClip and clear the associated flags.</span></div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;<span class="comment">     * Do not delete hrgnClip if DCX_NODELETERGN is set!</span></div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;    <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_NODELETERGN)) {</div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160; </div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;        <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a> &gt; MAXREGION)</div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;            GreDeleteObject(pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a>);</div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160; </div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp;= ~DCX_NODELETERGN;</div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;    }</div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160; </div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> &gt; MAXREGION)</div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;        GreDeleteObject(pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a>);</div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160; </div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a>       = NULL;</div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> = NULL;</div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160; </div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;<span class="comment">     * Restore the saved visrgn.</span></div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a> != NULL) {</div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;        GreSelectVisRgn(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>, pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a>, NULL, SVR_DELETEOLD);</div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a> = NULL;</div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;    }</div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160; </div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;<span class="comment">     * If the saved visrgn was invalidated by an InvalidateDC()</span></div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;<span class="comment">     * while we had it checked out, then invalidate the entry now.</span></div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;<span class="comment">     * NOTE: This sucks - cause we recalc the vis rgn if this is called</span></div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;<span class="comment">     * from ReleaseDC(), because we haven&#39;t cleared the DCX_INUSE bit</span></div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;<span class="comment">     * set.  In the future, we want to recalc visrgns *LAZILY* not</span></div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;<span class="comment">     * automatically like here (waste of time because maybe this window</span></div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;<span class="comment">     * won&#39;t call GetDC() again for awhile).  (ScottLu)</span></div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_SAVEDRGNINVALID)</div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;        <a class="code" href="a00644.html#a1c4d30db5baf9bd9210e666a55ec85ac">InvalidateDce</a>(pdce);</div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00899_source.html#l02463">tagDCE::hrgnClip</a>, <a class="el" href="a00899_source.html#l02464">tagDCE::hrgnClipPublic</a>, <a class="el" href="a00899_source.html#l02465">tagDCE::hrgnSavedVis</a> , 以及 <a class="el" href="a00644_source.html#l00380">InvalidateDce()</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l00560">_GetDCEx()</a>, <a class="el" href="a00644_source.html#l01215">ReleaseCacheDC()</a> , 以及 <a class="el" href="a00635_source.html#l01817">xxxFreeWindow()</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a7f629d5ea5347d4878f63af730734e45">&#9670;&nbsp;</a></span>DestroyCacheDC()</h2>

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          <td class="memname">BOOL DestroyCacheDC </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a> *&#160;</td>
          <td class="paramname"><em>ppdce</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">HDC&#160;</td>
          <td class="paramname"><em>hdc</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l01486">1486</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>&#160;{</div>
<div class="line"><a name="l01490"></a><span class="lineno"> 1490</span>&#160;    <a class="code" href="a02909.html">PDCE</a> pdce;</div>
<div class="line"><a name="l01491"></a><span class="lineno"> 1491</span>&#160; </div>
<div class="line"><a name="l01492"></a><span class="lineno"> 1492</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01493"></a><span class="lineno"> 1493</span>&#160;<span class="comment">     * Zip through the cache looking for hdc.</span></div>
<div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>&#160;    <span class="keywordflow">if</span> (ppdce == NULL) {</div>
<div class="line"><a name="l01496"></a><span class="lineno"> 1496</span>&#160;        <span class="keywordflow">for</span> (ppdce = &amp;<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; (pdce = *ppdce); ppdce = &amp;pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>&#160;            <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a> == hdc)</div>
<div class="line"><a name="l01498"></a><span class="lineno"> 1498</span>&#160;                <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>&#160;        }</div>
<div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>&#160;    }</div>
<div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>&#160; </div>
<div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>&#160;    <span class="keywordflow">if</span> (ppdce == NULL)</div>
<div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>&#160;        <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>&#160; </div>
<div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>&#160;<span class="comment">     * Set this here so we know this DCE is supposed to be deleted.</span></div>
<div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01508"></a><span class="lineno"> 1508</span>&#160;    pdce = *ppdce;</div>
<div class="line"><a name="l01509"></a><span class="lineno"> 1509</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_DESTROYTHIS;</div>
<div class="line"><a name="l01510"></a><span class="lineno"> 1510</span>&#160; </div>
<div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>&#160;<span class="comment">     * Free up the dce object and contents.</span></div>
<div class="line"><a name="l01513"></a><span class="lineno"> 1513</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01514"></a><span class="lineno"> 1514</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a> != NULL) {</div>
<div class="line"><a name="l01515"></a><span class="lineno"> 1515</span>&#160;        GreDeleteObject(pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a>);</div>
<div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a> = NULL;</div>
<div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>&#160;    }</div>
<div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>&#160; </div>
<div class="line"><a name="l01519"></a><span class="lineno"> 1519</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> != NULL) {</div>
<div class="line"><a name="l01520"></a><span class="lineno"> 1520</span>&#160;        GreDeleteObject(pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a>);</div>
<div class="line"><a name="l01521"></a><span class="lineno"> 1521</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> = NULL;</div>
<div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>&#160;    }</div>
<div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>&#160; </div>
<div class="line"><a name="l01524"></a><span class="lineno"> 1524</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a> != NULL) {</div>
<div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>&#160;        GreDeleteObject(pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a>);</div>
<div class="line"><a name="l01526"></a><span class="lineno"> 1526</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">hrgnSavedVis</a> = NULL;</div>
<div class="line"><a name="l01527"></a><span class="lineno"> 1527</span>&#160;    }</div>
<div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>&#160; </div>
<div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01530"></a><span class="lineno"> 1530</span>&#160;<span class="comment">     * If GreSetDCOwner() or GreDeleteDC() fail, the</span></div>
<div class="line"><a name="l01531"></a><span class="lineno"> 1531</span>&#160;<span class="comment">     * DC is in-use by another thread.  Set</span></div>
<div class="line"><a name="l01532"></a><span class="lineno"> 1532</span>&#160;<span class="comment">     * W32PF_OWNDCCLEANUP so we know to scan for and</span></div>
<div class="line"><a name="l01533"></a><span class="lineno"> 1533</span>&#160;<span class="comment">     * delete this DCE later.</span></div>
<div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01535"></a><span class="lineno"> 1535</span>&#160;    <span class="keywordflow">if</span> (!GreSetDCOwner(hdc, OBJECT_OWNER_PUBLIC)) {</div>
<div class="line"><a name="l01536"></a><span class="lineno"> 1536</span>&#160;        PpiCurrent()-&gt;W32PF_Flags |= W32PF_OWNDCCLEANUP;</div>
<div class="line"><a name="l01537"></a><span class="lineno"> 1537</span>&#160;        <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l01538"></a><span class="lineno"> 1538</span>&#160;    }</div>
<div class="line"><a name="l01539"></a><span class="lineno"> 1539</span>&#160; </div>
<div class="line"><a name="l01540"></a><span class="lineno"> 1540</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>&#160;<span class="comment">     * Set the don&#39;t rip flag so our routine RipIfCacheDC() doesn&#39;t</span></div>
<div class="line"><a name="l01542"></a><span class="lineno"> 1542</span>&#160;<span class="comment">     * rip (called back from gdi).</span></div>
<div class="line"><a name="l01543"></a><span class="lineno"> 1543</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01544"></a><span class="lineno"> 1544</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_DONTRIPONDESTROY;</div>
<div class="line"><a name="l01545"></a><span class="lineno"> 1545</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l01546"></a><span class="lineno"> 1546</span>&#160;    GreMarkDeletableDC(hdc);    <span class="comment">// So GRE doesn&#39;t RIP.</span></div>
<div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01548"></a><span class="lineno"> 1548</span>&#160;    <span class="keywordflow">if</span> (!GreDeleteDC(hdc)) {</div>
<div class="line"><a name="l01549"></a><span class="lineno"> 1549</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l01550"></a><span class="lineno"> 1550</span>&#160;        GreMarkUndeletableDC(hdc);</div>
<div class="line"><a name="l01551"></a><span class="lineno"> 1551</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01552"></a><span class="lineno"> 1552</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp;= ~DCX_DONTRIPONDESTROY;</div>
<div class="line"><a name="l01553"></a><span class="lineno"> 1553</span>&#160;        PpiCurrent()-&gt;W32PF_Flags |= W32PF_OWNDCCLEANUP;</div>
<div class="line"><a name="l01554"></a><span class="lineno"> 1554</span>&#160;        <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>&#160;    }</div>
<div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>&#160; </div>
<div class="line"><a name="l01557"></a><span class="lineno"> 1557</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01558"></a><span class="lineno"> 1558</span>&#160;<span class="comment">     * Decrement this dc-entry from the free-list count.</span></div>
<div class="line"><a name="l01559"></a><span class="lineno"> 1559</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01560"></a><span class="lineno"> 1560</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_CACHE) {</div>
<div class="line"><a name="l01561"></a><span class="lineno"> 1561</span>&#160; </div>
<div class="line"><a name="l01562"></a><span class="lineno"> 1562</span>&#160;        <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INUSE))</div>
<div class="line"><a name="l01563"></a><span class="lineno"> 1563</span>&#160;            <a class="code" href="a00644.html#a31f5ecc6a84f44341dd408cf54f41a12">gnDCECount</a>--;</div>
<div class="line"><a name="l01564"></a><span class="lineno"> 1564</span>&#160; </div>
<div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l01566"></a><span class="lineno"> 1566</span>&#160;        <span class="keywordflow">if</span> (<a class="code" href="a00644.html#a31f5ecc6a84f44341dd408cf54f41a12">gnDCECount</a> &lt; 0)</div>
<div class="line"><a name="l01567"></a><span class="lineno"> 1567</span>&#160;            <a class="code" href="a00371.html#a31aafffb49dfe98bdc749c9b35c90162">RIPMSG1</a>(<a class="code" href="a00371.html#afa5f32de88404289ec03cd2c0e61e94f">RIP_ERROR</a>, <span class="stringliteral">&quot;DCE Over Decrement: count == %d\n&quot;</span>, <a class="code" href="a00644.html#a31f5ecc6a84f44341dd408cf54f41a12">gnDCECount</a>);</div>
<div class="line"><a name="l01568"></a><span class="lineno"> 1568</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01569"></a><span class="lineno"> 1569</span>&#160; </div>
<div class="line"><a name="l01570"></a><span class="lineno"> 1570</span>&#160;    }</div>
<div class="line"><a name="l01571"></a><span class="lineno"> 1571</span>&#160; </div>
<div class="line"><a name="l01572"></a><span class="lineno"> 1572</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l01573"></a><span class="lineno"> 1573</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>  = NULL;</div>
<div class="line"><a name="l01574"></a><span class="lineno"> 1574</span>&#160;    pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a> = NULL;</div>
<div class="line"><a name="l01575"></a><span class="lineno"> 1575</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01576"></a><span class="lineno"> 1576</span>&#160; </div>
<div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>&#160;<span class="comment">     * Unlink the DCE from the list.</span></div>
<div class="line"><a name="l01579"></a><span class="lineno"> 1579</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>&#160;    *ppdce = pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>;</div>
<div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>&#160; </div>
<div class="line"><a name="l01582"></a><span class="lineno"> 1582</span>&#160;    UserFreePool(pdce);</div>
<div class="line"><a name="l01583"></a><span class="lineno"> 1583</span>&#160; </div>
<div class="line"><a name="l01584"></a><span class="lineno"> 1584</span>&#160;    <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l01585"></a><span class="lineno"> 1585</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a00644_source.html#l00022">gnDCECount</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00899_source.html#l02463">tagDCE::hrgnClip</a>, <a class="el" href="a00899_source.html#l02464">tagDCE::hrgnClipPublic</a>, <a class="el" href="a00899_source.html#l02465">tagDCE::hrgnSavedVis</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a>, <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a>, <a class="el" href="a00899_source.html#l02462">tagDCE::pwndClip</a>, <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>, <a class="el" href="a00371_source.html#l00028">RIP_ERROR</a> , 以及 <a class="el" href="a00371_source.html#l00132">RIPMSG1</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l01447">DelayedDestroyCacheDC()</a>, <a class="el" href="a00635_source.html#l02483">DestroyCacheDCEntries()</a>, <a class="el" href="a00623_source.html#l01089">DestroyClass()</a>, <a class="el" href="a00644_source.html#l01215">ReleaseCacheDC()</a>, <a class="el" href="a03665_source.html#l02228">UserProcessCallout()</a> , 以及 <a class="el" href="a00635_source.html#l01817">xxxFreeWindow()</a>.</p>

</div>
</div>
<a id="a6abd9613dcf1227e044eb29b61b1b4ae"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6abd9613dcf1227e044eb29b61b1b4ae">&#9670;&nbsp;</a></span>FastWindowFromDC()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a> FastWindowFromDC </td>
          <td>(</td>
          <td class="paramtype">HDC&#160;</td>
          <td class="paramname"><em>hdc</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l01832">1832</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l01834"></a><span class="lineno"> 1834</span>&#160;{</div>
<div class="line"><a name="l01835"></a><span class="lineno"> 1835</span>&#160;    <a class="code" href="a02909.html">PDCE</a> *ppdce;</div>
<div class="line"><a name="l01836"></a><span class="lineno"> 1836</span>&#160;    <a class="code" href="a02909.html">PDCE</a> pdceT;</div>
<div class="line"><a name="l01837"></a><span class="lineno"> 1837</span>&#160; </div>
<div class="line"><a name="l01838"></a><span class="lineno"> 1838</span>&#160;    <span class="keywordflow">if</span> ((<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a> == hdc) &amp;&amp;</div>
<div class="line"><a name="l01839"></a><span class="lineno"> 1839</span>&#160;        (<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INUSE)) {</div>
<div class="line"><a name="l01840"></a><span class="lineno"> 1840</span>&#160; </div>
<div class="line"><a name="l01841"></a><span class="lineno"> 1841</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>;</div>
<div class="line"><a name="l01842"></a><span class="lineno"> 1842</span>&#160;    }</div>
<div class="line"><a name="l01843"></a><span class="lineno"> 1843</span>&#160; </div>
<div class="line"><a name="l01844"></a><span class="lineno"> 1844</span>&#160;    <span class="keywordflow">for</span> (ppdce = &amp;<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; *ppdce; ppdce = &amp;(*ppdce)-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l01845"></a><span class="lineno"> 1845</span>&#160; </div>
<div class="line"><a name="l01846"></a><span class="lineno"> 1846</span>&#160;        <span class="keywordflow">if</span> (((*ppdce)-&gt;hdc == hdc) &amp;&amp; ((*ppdce)-&gt;flags &amp; DCX_INUSE)) {</div>
<div class="line"><a name="l01847"></a><span class="lineno"> 1847</span>&#160; </div>
<div class="line"><a name="l01848"></a><span class="lineno"> 1848</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l01849"></a><span class="lineno"> 1849</span>&#160;<span class="comment">             * Unlink/link to make it first.</span></div>
<div class="line"><a name="l01850"></a><span class="lineno"> 1850</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l01851"></a><span class="lineno"> 1851</span>&#160;            pdceT                 = *ppdce;</div>
<div class="line"><a name="l01852"></a><span class="lineno"> 1852</span>&#160;            *ppdce                = pdceT-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>;</div>
<div class="line"><a name="l01853"></a><span class="lineno"> 1853</span>&#160;            pdceT-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>       = <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>;</div>
<div class="line"><a name="l01854"></a><span class="lineno"> 1854</span>&#160;            <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a> = pdceT;</div>
<div class="line"><a name="l01855"></a><span class="lineno"> 1855</span>&#160; </div>
<div class="line"><a name="l01856"></a><span class="lineno"> 1856</span>&#160;            <span class="keywordflow">return</span> pdceT-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>;</div>
<div class="line"><a name="l01857"></a><span class="lineno"> 1857</span>&#160;        }</div>
<div class="line"><a name="l01858"></a><span class="lineno"> 1858</span>&#160;    }</div>
<div class="line"><a name="l01859"></a><span class="lineno"> 1859</span>&#160; </div>
<div class="line"><a name="l01860"></a><span class="lineno"> 1860</span>&#160;    <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l01861"></a><span class="lineno"> 1861</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a>, <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a> , 以及 <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00836_source.html#l00642">_ScrollDC()</a>.</p>

</div>
</div>
<a id="a69728f013275d0f4332dded4eb2432a3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a69728f013275d0f4332dded4eb2432a3">&#9670;&nbsp;</a></span>InvalidateDCCache()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">BOOL InvalidateDCCache </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a>&#160;</td>
          <td class="paramname"><em>pwndInvalid</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a>&#160;</td>
          <td class="paramname"><em>flags</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l01644">1644</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>&#160;{</div>
<div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>&#160;    <a class="code" href="a02581.html">PWND</a>        pwnd;</div>
<div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>&#160;    <a class="code" href="a02909.html">PDCE</a>        pdce;</div>
<div class="line"><a name="l01650"></a><span class="lineno"> 1650</span>&#160;    <a class="code" href="a02889.html">PTHREADINFO</a> ptiCurrent = <a class="code" href="a00257.html#a8315d2c807ba18ba9e528c40614b6173">PtiCurrent</a>();</div>
<div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>&#160; </div>
<div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>&#160;<span class="comment">     * Invalidation implies screen real estate is changing so we must</span></div>
<div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>&#160;<span class="comment">     * jiggle the mouse, because the a different window may be underneath</span></div>
<div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>&#160;<span class="comment">     * the mouse, which needs to get a mouse move in order to change the</span></div>
<div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>&#160;<span class="comment">     * mouse pointer.</span></div>
<div class="line"><a name="l01657"></a><span class="lineno"> 1657</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>&#160;<span class="comment">     * The check for the tracking is added for full-drag-windows.  In doing</span></div>
<div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>&#160;<span class="comment">     * full-drag, BltValidBits() is called from setting the window-pos.</span></div>
<div class="line"><a name="l01660"></a><span class="lineno"> 1660</span>&#160;<span class="comment">     * This resulted in an extra-mousemove being queued from this routine.</span></div>
<div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>&#160;<span class="comment">     * So, when we&#39;re tracking, don&#39;t queue a mousemove.  This pointer is</span></div>
<div class="line"><a name="l01662"></a><span class="lineno"> 1662</span>&#160;<span class="comment">     * null when tracking is off, so it won&#39;t effect the normal case.</span></div>
<div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>&#160;    <span class="keywordflow">if</span> (!(ptiCurrent-&gt;<a class="code" href="a02889.html#ae8b869ec5b101646649020f5b0fd5d0d">TIF_flags</a> &amp; TIF_MOVESIZETRACKING))</div>
<div class="line"><a name="l01665"></a><span class="lineno"> 1665</span>&#160;        <a class="code" href="a03290.html#a67abc9d7678097e0d7225e4af7f7973d">SetFMouseMoved</a>();</div>
<div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>&#160; </div>
<div class="line"><a name="l01667"></a><span class="lineno"> 1667</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01668"></a><span class="lineno"> 1668</span>&#160;<span class="comment">     * The visrgn of pwnd is changing.  First see if a change to this</span></div>
<div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>&#160;<span class="comment">     * visrgn will also affect other window&#39;s visrgns:</span></div>
<div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l01671"></a><span class="lineno"> 1671</span>&#160;<span class="comment">     * 1) if parent is clipchildren, we need to invalidate parent</span></div>
<div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>&#160;<span class="comment">     * 2) if clipsiblings, we need to invalidate our sibling&#39;s visrgns.</span></div>
<div class="line"><a name="l01673"></a><span class="lineno"> 1673</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>&#160;<span class="comment">     * We don&#39;t optimize the case where we&#39;re NOT clipsiblings, and our</span></div>
<div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>&#160;<span class="comment">     * parent is clipchildren: very rare case.</span></div>
<div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>&#160;<span class="comment">     * We also don&#39;t optimize the fact that a clipsiblings window visrgn</span></div>
<div class="line"><a name="l01677"></a><span class="lineno"> 1677</span>&#160;<span class="comment">     * change only affects the visrgns of windows BELOW it.</span></div>
<div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01679"></a><span class="lineno"> 1679</span>&#160;    <span class="keywordflow">if</span> (flags &amp; IDC_DEFAULT) {</div>
<div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>&#160; </div>
<div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>&#160;        flags = 0;</div>
<div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>&#160; </div>
<div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>&#160;        <span class="keywordflow">if</span> ((pwndInvalid-&gt;<a class="code" href="a02581.html#a6053af0b243b6737640988eb63081de3">spwndParent</a> != NULL) &amp;&amp;</div>
<div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>&#160;            (pwndInvalid != PWNDDESKTOP(pwndInvalid))) {</div>
<div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>&#160; </div>
<div class="line"><a name="l01686"></a><span class="lineno"> 1686</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>&#160;<span class="comment">             * If the parent is a clip-children window, then</span></div>
<div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>&#160;<span class="comment">             * a change to our visrgn will affect his visrgn, and</span></div>
<div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>&#160;<span class="comment">             * possibly those of our siblings.  So, invalidate starting</span></div>
<div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>&#160;<span class="comment">             * from our parent.  Note that we don&#39;t need to invalidate</span></div>
<div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>&#160;<span class="comment">             * any window DCs associated with our parent.</span></div>
<div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>&#160;            <span class="keywordflow">if</span> (TestWF(pwndInvalid-&gt;<a class="code" href="a02581.html#a6053af0b243b6737640988eb63081de3">spwndParent</a>, WFCLIPCHILDREN)) {</div>
<div class="line"><a name="l01694"></a><span class="lineno"> 1694</span>&#160; </div>
<div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>&#160;                flags = IDC_CLIENTONLY;</div>
<div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>&#160;                pwndInvalid = pwndInvalid-&gt;<a class="code" href="a02581.html#a6053af0b243b6737640988eb63081de3">spwndParent</a>;</div>
<div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>&#160; </div>
<div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>&#160;            } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (TestWF(pwndInvalid, WFCLIPSIBLINGS)) {</div>
<div class="line"><a name="l01699"></a><span class="lineno"> 1699</span>&#160; </div>
<div class="line"><a name="l01700"></a><span class="lineno"> 1700</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01701"></a><span class="lineno"> 1701</span>&#160;<span class="comment">                 * If we are clip-siblings, chances are that our siblings are</span></div>
<div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>&#160;<span class="comment">                 * too.  A change to our visrgn might affect our siblings,</span></div>
<div class="line"><a name="l01703"></a><span class="lineno"> 1703</span>&#160;<span class="comment">                 * so invalidate all of our siblings.</span></div>
<div class="line"><a name="l01704"></a><span class="lineno"> 1704</span>&#160;<span class="comment">                 *</span></div>
<div class="line"><a name="l01705"></a><span class="lineno"> 1705</span>&#160;<span class="comment">                 * NOTE! This code assumes that if pwndInvalid is NOT</span></div>
<div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>&#160;<span class="comment">                 * CLIPSIBLINGs, that either it does not overlap other</span></div>
<div class="line"><a name="l01707"></a><span class="lineno"> 1707</span>&#160;<span class="comment">                 * CLIPSIBLINGs windows, or that none of the siblings are</span></div>
<div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>&#160;<span class="comment">                 * CLIPSIBLINGs.  This is a reasonable assumption, because</span></div>
<div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>&#160;<span class="comment">                 * mixing CLIPSIBLINGs and non CLIPSIBLINGs windows that</span></div>
<div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>&#160;<span class="comment">                 * overlap is generally unpredictable anyhow.</span></div>
<div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>&#160;                flags = IDC_CHILDRENONLY;</div>
<div class="line"><a name="l01713"></a><span class="lineno"> 1713</span>&#160;                pwndInvalid = pwndInvalid-&gt;<a class="code" href="a02581.html#a6053af0b243b6737640988eb63081de3">spwndParent</a>;</div>
<div class="line"><a name="l01714"></a><span class="lineno"> 1714</span>&#160;            }</div>
<div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>&#160;        }</div>
<div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>&#160;    }</div>
<div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>&#160; </div>
<div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>&#160;<span class="comment">     * Go through the list of DCE&#39;s, looking for any that need to be</span></div>
<div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>&#160;<span class="comment">     * invalidated or recalculated.  Basically, any DCE that contains</span></div>
<div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>&#160;<span class="comment">     * a window handle that is equal to pwndInvalid or a child of pwndInvalid</span></div>
<div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>&#160;<span class="comment">     * needs to be invalidated.</span></div>
<div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01724"></a><span class="lineno"> 1724</span>&#160;    <span class="keywordflow">for</span> (pdce = <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; pdce; pdce = pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l01725"></a><span class="lineno"> 1725</span>&#160; </div>
<div class="line"><a name="l01726"></a><span class="lineno"> 1726</span>&#160;        <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; (DCX_INVALID | DCX_DESTROYTHIS))</div>
<div class="line"><a name="l01727"></a><span class="lineno"> 1727</span>&#160;            <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l01728"></a><span class="lineno"> 1728</span>&#160; </div>
<div class="line"><a name="l01729"></a><span class="lineno"> 1729</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01730"></a><span class="lineno"> 1730</span>&#160;<span class="comment">         * HACK ALERT</span></div>
<div class="line"><a name="l01731"></a><span class="lineno"> 1731</span>&#160;<span class="comment">         *</span></div>
<div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>&#160;<span class="comment">         * A minimized client DC must never exclude its children, even if</span></div>
<div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>&#160;<span class="comment">         * its WS_CLIPCHILDREN bit is set.  For CS_OWNDC windows we must</span></div>
<div class="line"><a name="l01734"></a><span class="lineno"> 1734</span>&#160;<span class="comment">         * update the flags of the DCE to reflect the change in window state</span></div>
<div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>&#160;<span class="comment">         * when the visrgn is eventually recomputed.</span></div>
<div class="line"><a name="l01736"></a><span class="lineno"> 1736</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01737"></a><span class="lineno"> 1737</span>&#160;        <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; (DCX_CACHE | DCX_WINDOW))) {</div>
<div class="line"><a name="l01738"></a><span class="lineno"> 1738</span>&#160; </div>
<div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>&#160;            <span class="keywordflow">if</span> (TestWF(pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>, WFCLIPCHILDREN))</div>
<div class="line"><a name="l01740"></a><span class="lineno"> 1740</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_CLIPCHILDREN;</div>
<div class="line"><a name="l01741"></a><span class="lineno"> 1741</span>&#160; </div>
<div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>&#160;            <span class="keywordflow">if</span> (TestWF(pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>, WFMINIMIZED))</div>
<div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp;= ~DCX_CLIPCHILDREN;</div>
<div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>&#160;        }</div>
<div class="line"><a name="l01745"></a><span class="lineno"> 1745</span>&#160; </div>
<div class="line"><a name="l01746"></a><span class="lineno"> 1746</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01747"></a><span class="lineno"> 1747</span>&#160;<span class="comment">         * This code assumes that if pdce-&gt;pwndClip != pdce-&gt;pwndOrg,</span></div>
<div class="line"><a name="l01748"></a><span class="lineno"> 1748</span>&#160;<span class="comment">         * that pdce-&gt;pwndClip == pdce-&gt;pwndOrg-&gt;spwndParent.  To ensure</span></div>
<div class="line"><a name="l01749"></a><span class="lineno"> 1749</span>&#160;<span class="comment">         * that both windows are visited, we start the walk upwards from</span></div>
<div class="line"><a name="l01750"></a><span class="lineno"> 1750</span>&#160;<span class="comment">         * the lower of the two, or pwndOrg.</span></div>
<div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>((pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a> == pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>) ||</div>
<div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>&#160;                   (pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a> == pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>-&gt;<a class="code" href="a02581.html#a6053af0b243b6737640988eb63081de3">spwndParent</a>));</div>
<div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>&#160; </div>
<div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>&#160;<span class="comment">         * Walk upwards from pdce-&gt;pwndOrg, to see if we encounter</span></div>
<div class="line"><a name="l01757"></a><span class="lineno"> 1757</span>&#160;<span class="comment">         * pwndInvalid.</span></div>
<div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>&#160;        <span class="keywordflow">for</span> (pwnd = pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>; pwnd; pwnd = pwnd-&gt;<a class="code" href="a02581.html#a6053af0b243b6737640988eb63081de3">spwndParent</a>) {</div>
<div class="line"><a name="l01760"></a><span class="lineno"> 1760</span>&#160; </div>
<div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>&#160;            <span class="keywordflow">if</span> (pwnd == pwndInvalid) {</div>
<div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>&#160; </div>
<div class="line"><a name="l01763"></a><span class="lineno"> 1763</span>&#160;                <span class="keywordflow">if</span> (pwndInvalid == pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>) {</div>
<div class="line"><a name="l01764"></a><span class="lineno"> 1764</span>&#160; </div>
<div class="line"><a name="l01765"></a><span class="lineno"> 1765</span>&#160;                    <span class="comment">/*</span></div>
<div class="line"><a name="l01766"></a><span class="lineno"> 1766</span>&#160;<span class="comment">                     * Ignore DCEs for pwndInvalid if IDC_CHILDRENONLY.</span></div>
<div class="line"><a name="l01767"></a><span class="lineno"> 1767</span>&#160;<span class="comment">                     */</span></div>
<div class="line"><a name="l01768"></a><span class="lineno"> 1768</span>&#160;                    <span class="keywordflow">if</span> (flags &amp; IDC_CHILDRENONLY)</div>
<div class="line"><a name="l01769"></a><span class="lineno"> 1769</span>&#160;                        <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l01770"></a><span class="lineno"> 1770</span>&#160; </div>
<div class="line"><a name="l01771"></a><span class="lineno"> 1771</span>&#160;                    <span class="comment">/*</span></div>
<div class="line"><a name="l01772"></a><span class="lineno"> 1772</span>&#160;<span class="comment">                     * Ignore window DCEs for pwndInvalid if IDC_CLIENTONLY</span></div>
<div class="line"><a name="l01773"></a><span class="lineno"> 1773</span>&#160;<span class="comment">                     */</span></div>
<div class="line"><a name="l01774"></a><span class="lineno"> 1774</span>&#160;                    <span class="keywordflow">if</span> ((flags &amp; IDC_CLIENTONLY) &amp;&amp; (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_WINDOW))</div>
<div class="line"><a name="l01775"></a><span class="lineno"> 1775</span>&#160;                        <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l01776"></a><span class="lineno"> 1776</span>&#160;                }</div>
<div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>&#160; </div>
<div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>&#160;                <a class="code" href="a00644.html#a1c4d30db5baf9bd9210e666a55ec85ac">InvalidateDce</a>(pdce);</div>
<div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>&#160;            }</div>
<div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>&#160;        }</div>
<div class="line"><a name="l01781"></a><span class="lineno"> 1781</span>&#160;    }</div>
<div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>&#160; </div>
<div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>&#160;<span class="comment">     * Update WNDOBJs in gdi if they exist.</span></div>
<div class="line"><a name="l01785"></a><span class="lineno"> 1785</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01786"></a><span class="lineno"> 1786</span>&#160;    GreLockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l01787"></a><span class="lineno"> 1787</span>&#160; </div>
<div class="line"><a name="l01788"></a><span class="lineno"> 1788</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="a03257.html#a60e11918eacb4e056b76f5bc96f8db2d">gcountPWO</a> != 0)</div>
<div class="line"><a name="l01789"></a><span class="lineno"> 1789</span>&#160;        <a class="code" href="a00644.html#a60c179a4f25667580d419b20c295f79e">InvalidateGDIWindows</a>(pwndInvalid);</div>
<div class="line"><a name="l01790"></a><span class="lineno"> 1790</span>&#160; </div>
<div class="line"><a name="l01791"></a><span class="lineno"> 1791</span>&#160;    GreClientRgnUpdated(<a class="code" href="a03257.html#a60e11918eacb4e056b76f5bc96f8db2d">gcountPWO</a> != 0);</div>
<div class="line"><a name="l01792"></a><span class="lineno"> 1792</span>&#160; </div>
<div class="line"><a name="l01793"></a><span class="lineno"> 1793</span>&#160;    GreUnlockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l01794"></a><span class="lineno"> 1794</span>&#160; </div>
<div class="line"><a name="l01795"></a><span class="lineno"> 1795</span>&#160;    <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l01796"></a><span class="lineno"> 1796</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a03257_source.html#l00479">gcountPWO</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00644_source.html#l00380">InvalidateDce()</a>, <a class="el" href="a00644_source.html#l01594">InvalidateGDIWindows()</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a>, <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a>, <a class="el" href="a00365_source.html#l01577">tagDISPLAYINFO::pDevLock</a>, <a class="el" href="a00263_source.html#l00526">PtiCurrent()</a>, <a class="el" href="a00899_source.html#l02462">tagDCE::pwndClip</a>, <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>, <a class="el" href="a03290_source.html#l01213">SetFMouseMoved()</a>, <a class="el" href="a00365_source.html#l01392">tagWND::spwndParent</a>, <a class="el" href="a00899_source.html#l02294">tagTHREADINFO::TIF_flags</a> , 以及 <a class="el" href="a00950_source.html#l00117">UserAssert</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00872_source.html#l02237">BltValidBits()</a>, <a class="el" href="a00689_source.html#l00884">ResetDisplayDevice()</a>, <a class="el" href="a00671_source.html#l00055">xxxDWP_SetRedraw()</a>, <a class="el" href="a00860_source.html#l00758">xxxLockWindowUpdate2()</a>, <a class="el" href="a00836_source.html#l00731">xxxScrollWindowEx()</a>, <a class="el" href="a03719_source.html#l00220">xxxSetParent()</a> , 以及 <a class="el" href="a00626_source.html#l00187">xxxSetWindowStyle()</a>.</p>

</div>
</div>
<a id="a1c4d30db5baf9bd9210e666a55ec85ac"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1c4d30db5baf9bd9210e666a55ec85ac">&#9670;&nbsp;</a></span>InvalidateDce()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">VOID InvalidateDce </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a>&#160;</td>
          <td class="paramname"><em>pdce</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00380">380</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;{</div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;    GreLockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160; </div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;    <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INUSE)) {</div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160; </div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;<span class="comment">         * Accumulate any bounds for this CE</span></div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;<span class="comment">         * since we&#39;re about to mark it invalid.</span></div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;        <a class="code" href="a00860.html#acb4818d4adf72ca6c001f50c5f11020d">SpbCheckDce</a>(pdce);</div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160; </div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;<span class="comment">         * Mark this cache entry as invalid</span></div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;<span class="comment">         * (and clear all the other flags)</span></div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a>         &amp;= DCX_CACHE;      <span class="comment">// Don&#39;t clear this bit!</span></div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a>         |= DCX_INVALID;</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>        = NULL;</div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a>       = NULL;</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a860be5351f601ab541124507007056aa">hrgnClip</a>       = NULL;</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> = NULL;</div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160; </div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;<span class="comment">         * Remove the vis rgn since it is still owned - if we did not,</span></div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;<span class="comment">         * gdi would not be able to clean up properly if the app that</span></div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;<span class="comment">         * owns this vis rgn exist while the vis rgn is still selected.</span></div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;        GreSelectVisRgn(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>, NULL, NULL, SVR_DELETEOLD);</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160; </div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160; </div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;        <a class="code" href="a02581.html">PWND</a> pwndOrg  = pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>;</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;        <a class="code" href="a02581.html">PWND</a> pwndClip = pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a>;</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160; </div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;<span class="comment">         * In case the window&#39;s clipping style bits changed,</span></div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;<span class="comment">         * reset the DCE flags from the window style bits.</span></div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;<span class="comment">         * Note that minimized windows never exclude their children.</span></div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp;= ~(DCX_CLIPCHILDREN | DCX_CLIPSIBLINGS);</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160; </div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;<span class="preprocessor">#if 1</span></div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160; </div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;<span class="comment"> * Chicago stuff...</span></div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;        <span class="keywordflow">if</span> (TestCF(pwndOrg, CFPARENTDC) &amp;&amp;</div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;            (TestWF(pwndOrg, WFWIN31COMPAT) || !TestWF(pwndClip, WFCLIPCHILDREN)) &amp;&amp;</div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;            (TestWF(pwndOrg, WFVISIBLE) == TestWF(pwndClip, WFVISIBLE))) {</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160; </div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;            <span class="keywordflow">if</span> (TestWF(pwndClip, WFCLIPSIBLINGS))</div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_CLIPSIBLINGS;</div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160; </div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160; </div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;            <span class="keywordflow">if</span> (TestWF(pwndOrg, WFCLIPCHILDREN) &amp;&amp; !TestWF(pwndOrg, WFMINIMIZED))</div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_CLIPCHILDREN;</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160; </div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;            if (TestWF(pwndOrg, WFCLIPSIBLINGS))</div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_CLIPSIBLINGS;</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;        }</div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;<span class="comment">         * for parentclip windows we don&#39;t clipchildren.  It&#39;s parentclip</span></div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;<span class="comment">         * iff pdce-&gt;pwndClip != pdce-&gt;pwndOrg</span></div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;        <span class="keywordflow">if</span> (TestWF(pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a>, WFCLIPCHILDREN)          &amp;&amp;</div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;            !TestWF(pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a>, WFMINIMIZED)            &amp;&amp;</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;            <span class="comment">//pdce-&gt;pwndClip != PWNDDESKTOP(pdce-&gt;pwndClip)   &amp;&amp;</span></div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;            !(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_WINDOW)                     &amp;&amp;</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;            (pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a> == pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>)) {</div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160; </div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;            pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_CLIPCHILDREN;</div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;        }</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160; </div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;        <span class="keywordflow">if</span> (TestWF(pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a>, WFCLIPSIBLINGS))</div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;            pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_CLIPSIBLINGS;</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;#endif</div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160; </div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;        <span class="comment">/*</span></div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;<span class="comment">         * Mark that any saved visrgn needs to be recomputed.</span></div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;<span class="comment">         */</span></div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_SAVEDRGNINVALID;</div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160; </div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;        <a class="code" href="a00644.html#a530c91cf308e0cab4c57fe768013662d">UserSetDCVisRgn</a>(pdce);</div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;    }</div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160; </div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;    GreUnlockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00899_source.html#l02463">tagDCE::hrgnClip</a>, <a class="el" href="a00899_source.html#l02464">tagDCE::hrgnClipPublic</a>, <a class="el" href="a00365_source.html#l01577">tagDISPLAYINFO::pDevLock</a>, <a class="el" href="a00899_source.html#l02462">tagDCE::pwndClip</a>, <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>, <a class="el" href="a00860_source.html#l01000">SpbCheckDce()</a> , 以及 <a class="el" href="a00644_source.html#l00173">UserSetDCVisRgn()</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l01325">CreateCacheDC()</a>, <a class="el" href="a00644_source.html#l00480">DeleteHrgnClip()</a> , 以及 <a class="el" href="a00644_source.html#l01644">InvalidateDCCache()</a>.</p>

</div>
</div>
<a id="a60c179a4f25667580d419b20c295f79e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a60c179a4f25667580d419b20c295f79e">&#9670;&nbsp;</a></span>InvalidateGDIWindows()</h2>

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<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">VOID InvalidateGDIWindows </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a>&#160;</td>
          <td class="paramname"><em>pwnd</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l01594">1594</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>&#160;{</div>
<div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>&#160;    <span class="keywordflow">if</span> (pwnd != NULL) {</div>
<div class="line"><a name="l01598"></a><span class="lineno"> 1598</span>&#160; </div>
<div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>&#160;        <span class="keywordflow">if</span> (pwnd-&gt;<a class="code" href="a02581.html#a71f1a1b6201fc9510d5940f970dda9a0">pwo</a> != NULL) {</div>
<div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>&#160; </div>
<div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>&#160;            HRGN hrgnClient = NULL;</div>
<div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>&#160; </div>
<div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>&#160;            <a class="code" href="a00899.html#ab5b6a53d2b84dedad66b13f7f4b8c035">CalcVisRgn</a>(&amp;hrgnClient,</div>
<div class="line"><a name="l01604"></a><span class="lineno"> 1604</span>&#160;                       pwnd,</div>
<div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>&#160;                       pwnd,</div>
<div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>&#160;                       DCX_CLIPCHILDREN | DCX_CLIPSIBLINGS);</div>
<div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>&#160; </div>
<div class="line"><a name="l01608"></a><span class="lineno"> 1608</span>&#160;            GreSetClientRgn(pwnd-&gt;<a class="code" href="a02581.html#a71f1a1b6201fc9510d5940f970dda9a0">pwo</a>, hrgnClient, &amp;(pwnd-&gt;<a class="code" href="a02581.html#a17d59d04094aef8b577c0aa781cdf2c6">rcClient</a>));</div>
<div class="line"><a name="l01609"></a><span class="lineno"> 1609</span>&#160;        }</div>
<div class="line"><a name="l01610"></a><span class="lineno"> 1610</span>&#160; </div>
<div class="line"><a name="l01611"></a><span class="lineno"> 1611</span>&#160;        pwnd = pwnd-&gt;<a class="code" href="a02581.html#a6171c9000ea2060597a9bcf498ee0316">spwndChild</a>;</div>
<div class="line"><a name="l01612"></a><span class="lineno"> 1612</span>&#160;        <span class="keywordflow">while</span> (pwnd != NULL) {</div>
<div class="line"><a name="l01613"></a><span class="lineno"> 1613</span>&#160;            <a class="code" href="a00644.html#a60c179a4f25667580d419b20c295f79e">InvalidateGDIWindows</a>(pwnd);</div>
<div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>&#160;            pwnd = pwnd-&gt;<a class="code" href="a02581.html#af729b7de7a8fb84b70b70c4b401ce789">spwndNext</a>;</div>
<div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>&#160;        }</div>
<div class="line"><a name="l01616"></a><span class="lineno"> 1616</span>&#160;    }</div>
<div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00905_source.html#l00441">CalcVisRgn()</a>, <a class="el" href="a00365_source.html#l01396">tagWND::pwo</a>, <a class="el" href="a00365_source.html#l01399">tagWND::rcClient</a>, <a class="el" href="a00365_source.html#l01393">tagWND::spwndChild</a> , 以及 <a class="el" href="a00365_source.html#l01391">tagWND::spwndNext</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l01644">InvalidateDCCache()</a>.</p>

</div>
</div>
<a id="a99c1c681a5ca832389887bfab954cdb7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a99c1c681a5ca832389887bfab954cdb7">&#9670;&nbsp;</a></span>ReleaseCacheDC()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname"><a class="el" href="a03608.html#afd1a0e78d1f88954d93e48ab3821781f">UINT</a> ReleaseCacheDC </td>
          <td>(</td>
          <td class="paramtype">HDC&#160;</td>
          <td class="paramname"><em>hdc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">BOOL&#160;</td>
          <td class="paramname"><em>fEndPaint</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l01215">1215</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>&#160;{</div>
<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>&#160;    <a class="code" href="a02909.html">PDCE</a> pdce;</div>
<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>&#160;    <a class="code" href="a02909.html">PDCE</a> *ppdce;</div>
<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>&#160; </div>
<div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>&#160;    <span class="keywordflow">for</span> (ppdce = &amp;<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; (pdce = *ppdce); ppdce = &amp;pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>&#160; </div>
<div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>&#160;        <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a> == hdc) {</div>
<div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>&#160; </div>
<div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l01227"></a><span class="lineno"> 1227</span>&#160;<span class="comment">             * Check for redundant releases or release of an invalid entry</span></div>
<div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>&#160;            <span class="keywordflow">if</span> ((pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; (DCX_DESTROYTHIS | DCX_INVALID | DCX_INUSE)) != DCX_INUSE)</div>
<div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>&#160;                <span class="keywordflow">return</span> DCE_NORELEASE;</div>
<div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>&#160; </div>
<div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>&#160;<span class="comment">             * Lock the display since we may be playing with visrgns.</span></div>
<div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>&#160;            GreLockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>&#160; </div>
<div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>&#160;<span class="comment">             * If we have an EXCLUDERGN or INTERSECTRGN cache entry,</span></div>
<div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>&#160;<span class="comment">             * convert it back to a &quot;normal&quot; cache entry by restoring</span></div>
<div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>&#160;<span class="comment">             * the visrgn and blowing away hrgnClip.</span></div>
<div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>&#160;<span class="comment">             *</span></div>
<div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>&#160;<span class="comment">             * Note that for non-DCX_CACHE DCs, we only do this if</span></div>
<div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>&#160;<span class="comment">             * we&#39;re being called from EndPaint().</span></div>
<div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>&#160;            <span class="keywordflow">if</span> ((pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; (DCX_EXCLUDERGN | DCX_INTERSECTRGN)) &amp;&amp;</div>
<div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>&#160;                    ((pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_CACHE) || fEndPaint)) {</div>
<div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>&#160;                <a class="code" href="a00644.html#abf0325ba752a15637a55bb0d21285282">DeleteHrgnClip</a>(pdce);</div>
<div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>&#160;            }</div>
<div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>&#160; </div>
<div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>&#160;<span class="comment">             * Decrement references to this DC.  If we get to the</span></div>
<div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>&#160;<span class="comment">             * DCE_SIZE_DCLIMIT, keep the count so that xxxFreeWindow will</span></div>
<div class="line"><a name="l01253"></a><span class="lineno"> 1253</span>&#160;<span class="comment">             * be sure to the callback to delete the client-side DC.</span></div>
<div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l01255"></a><span class="lineno"> 1255</span>&#160;            <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>-&gt;<a class="code" href="a02581.html#acd5ffb69aba2aab87ce8f5405a07b68e">cDC</a> != DCE_SIZE_DCLIMIT) {</div>
<div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>&#160;                --pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>-&gt;<a class="code" href="a02581.html#acd5ffb69aba2aab87ce8f5405a07b68e">cDC</a>;</div>
<div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>&#160;            }</div>
<div class="line"><a name="l01258"></a><span class="lineno"> 1258</span>&#160; </div>
<div class="line"><a name="l01259"></a><span class="lineno"> 1259</span>&#160;            <span class="comment">/*</span></div>
<div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>&#160;<span class="comment">             * If this is a permanent DC, then don&#39;t reset its state.</span></div>
<div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>&#160;<span class="comment">             */</span></div>
<div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>&#160;            <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_CACHE) {</div>
<div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>&#160; </div>
<div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01265"></a><span class="lineno"> 1265</span>&#160;<span class="comment">                 * Restore the DC state and mark the entry as not in use.</span></div>
<div class="line"><a name="l01266"></a><span class="lineno"> 1266</span>&#160;<span class="comment">                 * Set owner back to server as well, since it&#39;s going back</span></div>
<div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>&#160;<span class="comment">                 * into the cache.</span></div>
<div class="line"><a name="l01268"></a><span class="lineno"> 1268</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01269"></a><span class="lineno"> 1269</span>&#160;                <span class="keywordflow">if</span> (!(pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_NORESETATTRS)) {</div>
<div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>&#160;                    <span class="comment">/*</span></div>
<div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>&#160;<span class="comment">                     * If bSetupDC() failed, the DC is busy (ie. in-use</span></div>
<div class="line"><a name="l01272"></a><span class="lineno"> 1272</span>&#160;<span class="comment">                     * by another thread), so don&#39;t release it.</span></div>
<div class="line"><a name="l01273"></a><span class="lineno"> 1273</span>&#160;<span class="comment">                     */</span></div>
<div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>&#160;                    <span class="keywordflow">if</span> ( (!(GreCleanDC(hdc))) ||</div>
<div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>&#160;                         (!(GreSetDCOwner(hdc, OBJECT_OWNER_NONE))) ) {</div>
<div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>&#160; </div>
<div class="line"><a name="l01277"></a><span class="lineno"> 1277</span>&#160;                        GreUnlockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l01278"></a><span class="lineno"> 1278</span>&#160;                        <span class="keywordflow">return</span> DCE_NORELEASE;</div>
<div class="line"><a name="l01279"></a><span class="lineno"> 1279</span>&#160;                    }</div>
<div class="line"><a name="l01280"></a><span class="lineno"> 1280</span>&#160; </div>
<div class="line"><a name="l01281"></a><span class="lineno"> 1281</span>&#160;                } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!GreSetDCOwner(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>, OBJECT_OWNER_NONE)) {</div>
<div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>&#160; </div>
<div class="line"><a name="l01283"></a><span class="lineno"> 1283</span>&#160;                    GreUnlockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>&#160;                    <span class="keywordflow">return</span> DCE_NORELEASE;</div>
<div class="line"><a name="l01285"></a><span class="lineno"> 1285</span>&#160;                }</div>
<div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>&#160; </div>
<div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#ac00f1663b75594a986bb299216d16bda">ptiOwner</a>  = NULL;</div>
<div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>&#160;                pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a>    &amp;= ~DCX_INUSE;</div>
<div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>&#160; </div>
<div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>&#160;<span class="comment">                 * Increment the Free DCE count.  This holds the count</span></div>
<div class="line"><a name="l01292"></a><span class="lineno"> 1292</span>&#160;<span class="comment">                 * of available DCEs.  Check the threshold, and destroy</span></div>
<div class="line"><a name="l01293"></a><span class="lineno"> 1293</span>&#160;<span class="comment">                 * the dce if it&#39;s above the mark.</span></div>
<div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l01295"></a><span class="lineno"> 1295</span>&#160;                <span class="keywordflow">if</span> (++<a class="code" href="a00644.html#a31f5ecc6a84f44341dd408cf54f41a12">gnDCECount</a> &gt; DCE_SIZE_CACHETHRESHOLD) {</div>
<div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>&#160; </div>
<div class="line"><a name="l01297"></a><span class="lineno"> 1297</span>&#160;                    <span class="keywordflow">if</span> (<a class="code" href="a00644.html#a7f629d5ea5347d4878f63af730734e45">DestroyCacheDC</a>(ppdce, pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>)) {</div>
<div class="line"><a name="l01298"></a><span class="lineno"> 1298</span>&#160;                        GreUnlockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>&#160;                        <span class="keywordflow">return</span> DCE_FREED;</div>
<div class="line"><a name="l01300"></a><span class="lineno"> 1300</span>&#160;                    }</div>
<div class="line"><a name="l01301"></a><span class="lineno"> 1301</span>&#160;                }</div>
<div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>&#160;            }</div>
<div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>&#160; </div>
<div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>&#160;            GreUnlockDisplay(<a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#a5e0929a8ef013061be966961b2eddbff">pDevLock</a>);</div>
<div class="line"><a name="l01305"></a><span class="lineno"> 1305</span>&#160;            <span class="keywordflow">return</span> DCE_RELEASED;</div>
<div class="line"><a name="l01306"></a><span class="lineno"> 1306</span>&#160;        }</div>
<div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>&#160;    }</div>
<div class="line"><a name="l01308"></a><span class="lineno"> 1308</span>&#160; </div>
<div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>&#160;<span class="comment">     * Yell if DC couldn&#39;t be found...</span></div>
<div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>&#160;    <a class="code" href="a00371.html#ae61d954062a9ece52e350e54cad9a23d">RIPERR0</a>(ERROR_DC_NOT_FOUND, <a class="code" href="a00371.html#ad6b24a3d61abdc148c8751b5c5add686">RIP_VERBOSE</a>, <span class="stringliteral">&quot;&quot;</span>);</div>
<div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>&#160;    <span class="keywordflow">return</span> DCE_NORELEASE;</div>
<div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00365_source.html#l01420">tagWND::cDC</a>, <a class="el" href="a00644_source.html#l00480">DeleteHrgnClip()</a>, <a class="el" href="a00644_source.html#l01486">DestroyCacheDC()</a>, <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a00644_source.html#l00022">gnDCECount</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a>, <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a>, <a class="el" href="a00365_source.html#l01577">tagDISPLAYINFO::pDevLock</a>, <a class="el" href="a00899_source.html#l02467">tagDCE::ptiOwner</a>, <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>, <a class="el" href="a00371_source.html#l00030">RIP_VERBOSE</a> , 以及 <a class="el" href="a00371_source.html#l00119">RIPERR0</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00812_source.html#l00431">_EndPaint()</a>, <a class="el" href="a00644_source.html#l00102">_ReleaseDC()</a>, <a class="el" href="a00635_source.html#l01817">xxxFreeWindow()</a> , 以及 <a class="el" href="a00812_source.html#l01093">xxxSendEraseBkgnd()</a>.</p>

</div>
</div>
<a id="af26b19776903d244c87630df83f7c48f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af26b19776903d244c87630df83f7c48f">&#9670;&nbsp;</a></span>ResetOrg()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">VOID ResetOrg </td>
          <td>(</td>
          <td class="paramtype">HRGN&#160;</td>
          <td class="paramname"><em>hrgn</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a>&#160;</td>
          <td class="paramname"><em>pdce</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00040">40</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;{</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    RECT  rc;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    ULONG flags;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160; </div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_WINDOW) {</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        rc = pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>-&gt;<a class="code" href="a02581.html#a2778d611c2b27395e559c94d05732e1f">rcWindow</a>;</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;        rc = pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>-&gt;<a class="code" href="a02581.html#a17d59d04094aef8b577c0aa781cdf2c6">rcClient</a>;</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    }</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160; </div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    flags = (hrgn == NULL) ? SVR_ORIGIN : SVR_DELETEOLD;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    GreSelectVisRgn(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>, hrgn, (PRECTL)&amp;rc, flags);</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>, <a class="el" href="a00365_source.html#l01399">tagWND::rcClient</a> , 以及 <a class="el" href="a00365_source.html#l01398">tagWND::rcWindow</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l00560">_GetDCEx()</a> , 以及 <a class="el" href="a00644_source.html#l00173">UserSetDCVisRgn()</a>.</p>

</div>
</div>
<a id="ad358326cc1c73aca105306a9287e609f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad358326cc1c73aca105306a9287e609f">&#9670;&nbsp;</a></span>SelectFixedFont()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">VOID SelectFixedFont </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a>&#160;</td>
          <td class="paramname"><em>pdce</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00537">537</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;{</div>
<div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;    <a class="code" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> version = pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>-&gt;<a class="code" href="a02581.html#ac18617bb8bdbcb8e9c73e759b9df75eb">dwExpWinVer</a>;</div>
<div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160; </div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;<span class="comment">     * HIWORD of version is a flag that indicates that</span></div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;<span class="comment">     * an old application is compatible with the proportional</span></div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;<span class="comment">     * system font.</span></div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;    <span class="keywordflow">if</span> ((LOWORD(version) &lt; VER30) &amp;&amp; !HIWORD(version))</div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;        GreSelectFont(pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a>, <a class="code" href="a03257.html#a19396f9031f621c8d6c242f79dfbee19">ghFontSysFixed</a>);</div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00365_source.html#l01423">tagWND::dwExpWinVer</a>, <a class="el" href="a00563_source.html#l00175">DWORD</a>, <a class="el" href="a03257_source.html#l00413">ghFontSysFixed</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a> , 以及 <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l00560">_GetDCEx()</a>.</p>

</div>
</div>
<a id="a874d84dff8fcf3357a543b7d5c99c833"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a874d84dff8fcf3357a543b7d5c99c833">&#9670;&nbsp;</a></span>UserAssociateHwnd()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">VOID UserAssociateHwnd </td>
          <td>(</td>
          <td class="paramtype">HWND&#160;</td>
          <td class="paramname"><em>hwnd</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">PVOID&#160;</td>
          <td class="paramname"><em>pwo</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00335">335</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;{</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;    <a class="code" href="a02581.html">PWND</a> pwnd;</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160; </div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;<span class="comment">     * Must be in critical section.</span></div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;    CheckCritIn();</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160; </div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;    <span class="keywordflow">if</span> (pwnd = <a class="code" href="a00293.html#a41d387d1b2d42169cbaa2092c8a02abf">ValidateHwnd</a>(hwnd)) {</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;        pwnd-&gt;<a class="code" href="a02581.html#a71f1a1b6201fc9510d5940f970dda9a0">pwo</a> = pwo;</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;        <a class="code" href="a03257.html#a60e11918eacb4e056b76f5bc96f8db2d">gcountPWO</a>++;</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;    }</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a03257_source.html#l00479">gcountPWO</a>, <a class="el" href="a00365_source.html#l01396">tagWND::pwo</a> , 以及 <a class="el" href="a00293_source.html#l00090">ValidateHwnd</a>.</p>

</div>
</div>
<a id="a2105b79dcc40cce63552617c07e517dd"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2105b79dcc40cce63552617c07e517dd">&#9670;&nbsp;</a></span>UserGetClientRgn()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">HRGN UserGetClientRgn </td>
          <td>(</td>
          <td class="paramtype">HWND&#160;</td>
          <td class="paramname"><em>hwnd</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">LPRECT&#160;</td>
          <td class="paramname"><em>lprc</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00226">226</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;{</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;    HRGN hrgnClient = (HRGN)NULL;</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;    <a class="code" href="a02581.html">PWND</a> pwnd;</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160; </div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;<span class="comment">     * Must be in critical section.</span></div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;    CheckCritIn();</div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160; </div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;    <span class="keywordflow">if</span> (pwnd = <a class="code" href="a00293.html#a41d387d1b2d42169cbaa2092c8a02abf">ValidateHwnd</a>(hwnd)) {</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160; </div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;        <a class="code" href="a00899.html#ab5b6a53d2b84dedad66b13f7f4b8c035">CalcVisRgn</a>(&amp;hrgnClient,</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;                   pwnd,</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;                   pwnd,</div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;                   DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN);</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160; </div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;        *lprc = pwnd-&gt;<a class="code" href="a02581.html#a17d59d04094aef8b577c0aa781cdf2c6">rcClient</a>;</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;    }</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160; </div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;    <span class="keywordflow">return</span> hrgnClient;</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00905_source.html#l00441">CalcVisRgn()</a>, <a class="el" href="a00365_source.html#l01399">tagWND::rcClient</a> , 以及 <a class="el" href="a00293_source.html#l00090">ValidateHwnd</a>.</p>

</div>
</div>
<a id="a83380a0dab02357ac1a8fb85688c00cd"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a83380a0dab02357ac1a8fb85688c00cd">&#9670;&nbsp;</a></span>UserGetHwnd()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">BOOL UserGetHwnd </td>
          <td>(</td>
          <td class="paramtype">HDC&#160;</td>
          <td class="paramname"><em>hdc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">HWND *&#160;</td>
          <td class="paramname"><em>phwnd</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">PVOID *&#160;</td>
          <td class="paramname"><em>ppwo</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">BOOL&#160;</td>
          <td class="paramname"><em>bCheckStyle</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00265">265</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;{</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;    <a class="code" href="a02581.html">PWND</a> pwnd;</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;    <a class="code" href="a02909.html">PDCE</a> pdce;</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160; </div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;<span class="comment">     * Must be in critical section.</span></div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;    CheckCritIn();</div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160; </div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;<span class="comment">     * Find pdce and pwnd for this DC.</span></div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;<span class="comment">     * Note: the SAMEHANDLE macro strips out the user defined bits in the</span></div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;<span class="comment">     * handle before doing the comparison.  This is important because when</span></div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;<span class="comment">     * GRE calls this function, it may have lost track of the OWNDC bit.</span></div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;    <span class="keywordflow">for</span> (pdce = <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; pdce != NULL; pdce = pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160; </div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;        <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a> == hdc) <span class="comment">// this should be undone once SAMEHANDLE is fixed for kmode</span></div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;            <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;    }</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160; </div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;<span class="comment">     * Return FALSE If it is not in the pdce list.</span></div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    <span class="keywordflow">if</span> ((pdce == NULL) || (pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a> == NULL))</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;        <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160; </div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;    pwnd = pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>;</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160; </div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;<span class="comment">     * The window style must be clipchildren and clipsiblings.</span></div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;<span class="comment">     * the window&#39;s class must not be parentdc</span></div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;    <span class="keywordflow">if</span> (bCheckStyle) {</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160; </div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;        <span class="keywordflow">if</span> (!TestWF(pwnd, WFCLIPCHILDREN) ||</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;            !TestWF(pwnd, WFCLIPSIBLINGS) ||</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;            TestCF(pwnd, CFPARENTDC)) {</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;<span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;            <a class="code" href="a00371.html#a01c4659626880ba56745765a3580a36b">RIPMSG0</a>(<a class="code" href="a00371.html#a41f433389f20db57f042022a662e96de">RIP_WARNING</a>, <span class="stringliteral">&quot;UserGetHwnd: Bad OpenGL window style or class&quot;</span>);</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;            <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;        }</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;    }</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160; </div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;<span class="comment">     * Return the hwnd with the correct styles for a device format window.</span></div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;    *phwnd = HW(pwnd);</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;    *ppwo  = pwnd-&gt;<a class="code" href="a02581.html#a71f1a1b6201fc9510d5940f970dda9a0">pwo</a>;</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160; </div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;    <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a>, <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a>, <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>, <a class="el" href="a00365_source.html#l01396">tagWND::pwo</a>, <a class="el" href="a00371_source.html#l00029">RIP_WARNING</a> , 以及 <a class="el" href="a00371_source.html#l00131">RIPMSG0</a>.</p>

</div>
</div>
<a id="a23328525ae859df955088b4ce6aa0fce"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a23328525ae859df955088b4ce6aa0fce">&#9670;&nbsp;</a></span>UserReleaseDC()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">BOOL UserReleaseDC </td>
          <td>(</td>
          <td class="paramtype">HDC&#160;</td>
          <td class="paramname"><em>hdc</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00360">360</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;{</div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;    BOOL b;</div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160; </div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;    <a class="code" href="a00899.html#ae451a2dc8791c420d7c956a63adc33ba">EnterCrit</a>();</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;    b = <a class="code" href="a00644.html#a1ec030500a19f775519fbaf16c15f814">_ReleaseDC</a>(hdc);</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;    <a class="code" href="a00899.html#ac2181d07596893ed44d18aa267ce4d23">LeaveCrit</a>();</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160; </div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;    <span class="keywordflow">return</span> b;</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00644_source.html#l00102">_ReleaseDC()</a>, <a class="el" href="a00899.html#ae451a2dc8791c420d7c956a63adc33ba">EnterCrit()</a> , 以及 <a class="el" href="a00899.html#ac2181d07596893ed44d18aa267ce4d23">LeaveCrit()</a>.</p>

</div>
</div>
<a id="a530c91cf308e0cab4c57fe768013662d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a530c91cf308e0cab4c57fe768013662d">&#9670;&nbsp;</a></span>UserSetDCVisRgn()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">VOID UserSetDCVisRgn </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="a00365.html#a14cc346ee8ede26993b172cd1192b588">PDCE</a>&#160;</td>
          <td class="paramname"><em>pdce</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00173">173</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;{</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    HRGN hrgn = NULL;</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160; </div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="comment">     * If the visrgn calculated is empt, set the flag DCX_PWNDORGINVISIBLE,</span></div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="comment">     * otherwise clear it (it could&#39;ve been set earlier on).</span></div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;    <span class="keywordflow">if</span> (!<a class="code" href="a00899.html#ab5b6a53d2b84dedad66b13f7f4b8c035">CalcVisRgn</a>(&amp;hrgn, pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>, pdce-&gt;<a class="code" href="a02909.html#ac236c06bc314b64b887b990a28d24194">pwndClip</a>, pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a>)) {</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> |= DCX_PWNDORGINVISIBLE;</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp;= ~DCX_PWNDORGINVISIBLE;</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;    }</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160; </div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;<span class="comment">     * Deal with INTERSECTRGN and EXCLUDERGN.</span></div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;    <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_INTERSECTRGN) {</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160; </div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> != MAXREGION);</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160; </div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;        <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> == NULL) {</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;            GreSetRectRgn(hrgn, 0, 0, 0, 0);</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;            IntersectRgn(hrgn, hrgn, pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a>);</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;        }</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160; </div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_EXCLUDERGN) {</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160; </div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;        <a class="code" href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a>(pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> != NULL);</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160; </div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;        <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a> == MAXREGION) {</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;            GreSetRectRgn(hrgn, 0, 0, 0, 0);</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;            SubtractRgn(hrgn, hrgn, pdce-&gt;<a class="code" href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">hrgnClipPublic</a>);</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;        }</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;    }</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160; </div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    <a class="code" href="a00644.html#af26b19776903d244c87630df83f7c48f">ResetOrg</a>(hrgn, pdce);</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00905_source.html#l00441">CalcVisRgn()</a>, <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a00899_source.html#l02464">tagDCE::hrgnClipPublic</a>, <a class="el" href="a00899_source.html#l02462">tagDCE::pwndClip</a>, <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>, <a class="el" href="a00644_source.html#l00040">ResetOrg()</a> , 以及 <a class="el" href="a00950_source.html#l00117">UserAssert</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l00380">InvalidateDce()</a>.</p>

</div>
</div>
<a id="ab675a328649da4f932300c5dce1f5e1d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab675a328649da4f932300c5dce1f5e1d">&#9670;&nbsp;</a></span>WindowFromCacheDC()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname"><a class="el" href="a00365.html#a1a2ef1c363aa0787a8f8a7dde2a34aaf">PWND</a> WindowFromCacheDC </td>
          <td>(</td>
          <td class="paramtype">HDC&#160;</td>
          <td class="paramname"><em>hdc</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l01425">1425</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l01427"></a><span class="lineno"> 1427</span>&#160;{</div>
<div class="line"><a name="l01428"></a><span class="lineno"> 1428</span>&#160;    <a class="code" href="a02909.html">PDCE</a> pdce;</div>
<div class="line"><a name="l01429"></a><span class="lineno"> 1429</span>&#160; </div>
<div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>&#160;    <span class="keywordflow">for</span> (pdce = <a class="code" href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a>-&gt;<a class="code" href="a02605.html#afb2df48c699295f358dd262c291570a2">pdceFirst</a>; pdce; pdce = pdce-&gt;<a class="code" href="a02909.html#a836027bc59a581f318ea7974231660a0">pdceNext</a>) {</div>
<div class="line"><a name="l01431"></a><span class="lineno"> 1431</span>&#160; </div>
<div class="line"><a name="l01432"></a><span class="lineno"> 1432</span>&#160;        <span class="keywordflow">if</span> (pdce-&gt;<a class="code" href="a02909.html#acc6792141787aadc4d90abe018db1e02">hdc</a> == hdc)</div>
<div class="line"><a name="l01433"></a><span class="lineno"> 1433</span>&#160;            <span class="keywordflow">return</span> (pdce-&gt;<a class="code" href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">flags</a> &amp; DCX_DESTROYTHIS) ? NULL : pdce-&gt;<a class="code" href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">pwndOrg</a>;</div>
<div class="line"><a name="l01434"></a><span class="lineno"> 1434</span>&#160;    }</div>
<div class="line"><a name="l01435"></a><span class="lineno"> 1435</span>&#160; </div>
<div class="line"><a name="l01436"></a><span class="lineno"> 1436</span>&#160;    <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l01437"></a><span class="lineno"> 1437</span>&#160;}</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00899_source.html#l02466">tagDCE::flags</a>, <a class="el" href="a03257_source.html#l00125">gpDispInfo</a>, <a class="el" href="a00899_source.html#l02460">tagDCE::hdc</a>, <a class="el" href="a00365_source.html#l01574">tagDISPLAYINFO::pdceFirst</a>, <a class="el" href="a00899_source.html#l02459">tagDCE::pdceNext</a> , 以及 <a class="el" href="a00899_source.html#l02461">tagDCE::pwndOrg</a>.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00815_source.html#l00051">_SelectPalette()</a> , 以及 <a class="el" href="a00815_source.html#l00147">xxxRealizePalette()</a>.</p>

</div>
</div>
<h2 class="groupheader">变量说明</h2>
<a id="a31f5ecc6a84f44341dd408cf54f41a12"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a31f5ecc6a84f44341dd408cf54f41a12">&#9670;&nbsp;</a></span>gnDCECount</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">int gnDCECount = 0</td>
        </tr>
      </table>
</div><div class="memdoc">

<p class="definition">在文件 <a class="el" href="a00644_source.html">dc.c</a> 第 <a class="el" href="a00644_source.html#l00022">22</a> 行定义.</p>

<p class="reference">被这些函数引用 <a class="el" href="a00644_source.html#l00560">_GetDCEx()</a>, <a class="el" href="a00644_source.html#l01325">CreateCacheDC()</a>, <a class="el" href="a00644_source.html#l01486">DestroyCacheDC()</a> , 以及 <a class="el" href="a00644_source.html#l01215">ReleaseCacheDC()</a>.</p>

</div>
</div>
</div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="aa02889_html_ae8b869ec5b101646649020f5b0fd5d0d"><div class="ttname"><a href="a02889.html#ae8b869ec5b101646649020f5b0fd5d0d">tagTHREADINFO::TIF_flags</a></div><div class="ttdeci">DWORD TIF_flags</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02294">userk.h:2294</a></div></div>
<div class="ttc" id="aa00371_html_a01c4659626880ba56745765a3580a36b"><div class="ttname"><a href="a00371.html#a01c4659626880ba56745765a3580a36b">RIPMSG0</a></div><div class="ttdeci">#define RIPMSG0(flags, szFmt)</div><div class="ttdef"><b>Definition:</b> <a href="a00371_source.html#l00131">winerrp.h:131</a></div></div>
<div class="ttc" id="aa02909_html_ac236c06bc314b64b887b990a28d24194"><div class="ttname"><a href="a02909.html#ac236c06bc314b64b887b990a28d24194">tagDCE::pwndClip</a></div><div class="ttdeci">struct tagWND * pwndClip</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02462">userk.h:2462</a></div></div>
<div class="ttc" id="aa02581_html_a9ac6b15978318e3401ef9a878ccb40ac"><div class="ttname"><a href="a02581.html#a9ac6b15978318e3401ef9a878ccb40ac">tagWND::pcls</a></div><div class="ttdeci">PCLS pcls</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01403">user.h:1403</a></div></div>
<div class="ttc" id="aa00899_html_ae451a2dc8791c420d7c956a63adc33ba"><div class="ttname"><a href="a00899.html#ae451a2dc8791c420d7c956a63adc33ba">EnterCrit</a></div><div class="ttdeci">VOID EnterCrit(VOID)</div></div>
<div class="ttc" id="aa00860_html_acb4818d4adf72ca6c001f50c5f11020d"><div class="ttname"><a href="a00860.html#acb4818d4adf72ca6c001f50c5f11020d">SpbCheckDce</a></div><div class="ttdeci">VOID SpbCheckDce(PDCE pdce)</div><div class="ttdef"><b>Definition:</b> <a href="a00860_source.html#l01000">spb.c:1000</a></div></div>
<div class="ttc" id="aa03257_html_a19396f9031f621c8d6c242f79dfbee19"><div class="ttname"><a href="a03257.html#a19396f9031f621c8d6c242f79dfbee19">ghFontSysFixed</a></div><div class="ttdeci">HFONT ghFontSysFixed</div><div class="ttdef"><b>Definition:</b> <a href="a03257_source.html#l00413">kernel/globals.c:413</a></div></div>
<div class="ttc" id="aa02909_html_acc6792141787aadc4d90abe018db1e02"><div class="ttname"><a href="a02909.html#acc6792141787aadc4d90abe018db1e02">tagDCE::hdc</a></div><div class="ttdeci">HDC hdc</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02460">userk.h:2460</a></div></div>
<div class="ttc" id="aa00644_html_a530c91cf308e0cab4c57fe768013662d"><div class="ttname"><a href="a00644.html#a530c91cf308e0cab4c57fe768013662d">UserSetDCVisRgn</a></div><div class="ttdeci">VOID UserSetDCVisRgn(PDCE pdce)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l00173">dc.c:173</a></div></div>
<div class="ttc" id="aa02801_html"><div class="ttname"><a href="a02801.html">tagDESKTOP</a></div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l01703">userk.h:1703</a></div></div>
<div class="ttc" id="aa00371_html_ad6b24a3d61abdc148c8751b5c5add686"><div class="ttname"><a href="a00371.html#ad6b24a3d61abdc148c8751b5c5add686">RIP_VERBOSE</a></div><div class="ttdeci">#define RIP_VERBOSE</div><div class="ttdef"><b>Definition:</b> <a href="a00371_source.html#l00030">winerrp.h:30</a></div></div>
<div class="ttc" id="aa02801_html_a76d4881aa4c15330103e83a80e6b5dc7"><div class="ttname"><a href="a02801.html#a76d4881aa4c15330103e83a80e6b5dc7">tagDESKTOP::pDeskInfo</a></div><div class="ttdeci">PDESKTOPINFO pDeskInfo</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l01706">userk.h:1706</a></div></div>
<div class="ttc" id="aa02581_html_a71f1a1b6201fc9510d5940f970dda9a0"><div class="ttname"><a href="a02581.html#a71f1a1b6201fc9510d5940f970dda9a0">tagWND::pwo</a></div><div class="ttdeci">PVOID pwo</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01396">user.h:1396</a></div></div>
<div class="ttc" id="aa02909_html_a29bb851466268efcf57e7e81e2d0ab09"><div class="ttname"><a href="a02909.html#a29bb851466268efcf57e7e81e2d0ab09">tagDCE::flags</a></div><div class="ttdeci">DWORD flags</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02466">userk.h:2466</a></div></div>
<div class="ttc" id="aa00371_html_a162a73e20dfabca084a3ebb4581631a8"><div class="ttname"><a href="a00371.html#a162a73e20dfabca084a3ebb4581631a8">UserAssert</a></div><div class="ttdeci">#define UserAssert(exp)</div><div class="ttdef"><b>Definition:</b> <a href="a00950_source.html#l00117">usersrv.h:117</a></div></div>
<div class="ttc" id="aa00371_html_afa5f32de88404289ec03cd2c0e61e94f"><div class="ttname"><a href="a00371.html#afa5f32de88404289ec03cd2c0e61e94f">RIP_ERROR</a></div><div class="ttdeci">#define RIP_ERROR</div><div class="ttdef"><b>Definition:</b> <a href="a00371_source.html#l00028">winerrp.h:28</a></div></div>
<div class="ttc" id="aa00371_html_a31aafffb49dfe98bdc749c9b35c90162"><div class="ttname"><a href="a00371.html#a31aafffb49dfe98bdc749c9b35c90162">RIPMSG1</a></div><div class="ttdeci">#define RIPMSG1(flags, szFmt, p1)</div><div class="ttdef"><b>Definition:</b> <a href="a00371_source.html#l00132">winerrp.h:132</a></div></div>
<div class="ttc" id="aa00644_html_ad358326cc1c73aca105306a9287e609f"><div class="ttname"><a href="a00644.html#ad358326cc1c73aca105306a9287e609f">SelectFixedFont</a></div><div class="ttdeci">VOID SelectFixedFont(PDCE pdce)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l00537">dc.c:537</a></div></div>
<div class="ttc" id="aa02605_html_afb2df48c699295f358dd262c291570a2"><div class="ttname"><a href="a02605.html#afb2df48c699295f358dd262c291570a2">tagDISPLAYINFO::pdceFirst</a></div><div class="ttdeci">PDCE pdceFirst</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01574">user.h:1574</a></div></div>
<div class="ttc" id="aa02569_html_aa1f7797b3bd2c83cc0af24110b6d8f64"><div class="ttname"><a href="a02569.html#aa1f7797b3bd2c83cc0af24110b6d8f64">tagCLS::pdce</a></div><div class="ttdeci">struct tagDCE * pdce</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01331">user.h:1331</a></div></div>
<div class="ttc" id="aa00257_html_a8315d2c807ba18ba9e528c40614b6173"><div class="ttname"><a href="a00257.html#a8315d2c807ba18ba9e528c40614b6173">PtiCurrent</a></div><div class="ttdeci">PTHREADINFO PtiCurrent(VOID)</div><div class="ttdef"><b>Definition:</b> <a href="a00263_source.html#l00526">winmgrc.c:526</a></div></div>
<div class="ttc" id="aa02581_html_af729b7de7a8fb84b70b70c4b401ce789"><div class="ttname"><a href="a02581.html#af729b7de7a8fb84b70b70c4b401ce789">tagWND::spwndNext</a></div><div class="ttdeci">struct tagWND * spwndNext</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01391">user.h:1391</a></div></div>
<div class="ttc" id="aa00644_html_a99c1c681a5ca832389887bfab954cdb7"><div class="ttname"><a href="a00644.html#a99c1c681a5ca832389887bfab954cdb7">ReleaseCacheDC</a></div><div class="ttdeci">UINT ReleaseCacheDC(HDC hdc, BOOL fEndPaint)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l01215">dc.c:1215</a></div></div>
<div class="ttc" id="aa00371_html_ae61d954062a9ece52e350e54cad9a23d"><div class="ttname"><a href="a00371.html#ae61d954062a9ece52e350e54cad9a23d">RIPERR0</a></div><div class="ttdeci">#define RIPERR0(idErr, flags, szFmt)</div><div class="ttdef"><b>Definition:</b> <a href="a00371_source.html#l00119">winerrp.h:119</a></div></div>
<div class="ttc" id="aa03257_html_a60e11918eacb4e056b76f5bc96f8db2d"><div class="ttname"><a href="a03257.html#a60e11918eacb4e056b76f5bc96f8db2d">gcountPWO</a></div><div class="ttdeci">int gcountPWO</div><div class="ttdef"><b>Definition:</b> <a href="a03257_source.html#l00479">kernel/globals.c:479</a></div></div>
<div class="ttc" id="aa00644_html_a1ec030500a19f775519fbaf16c15f814"><div class="ttname"><a href="a00644.html#a1ec030500a19f775519fbaf16c15f814">_ReleaseDC</a></div><div class="ttdeci">BOOL _ReleaseDC(HDC hdc)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l00102">dc.c:102</a></div></div>
<div class="ttc" id="aa02909_html_ad65464f74d6d6fecb27de3f219f14029"><div class="ttname"><a href="a02909.html#ad65464f74d6d6fecb27de3f219f14029">tagDCE::hrgnSavedVis</a></div><div class="ttdeci">HRGN hrgnSavedVis</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02465">userk.h:2465</a></div></div>
<div class="ttc" id="aa02909_html"><div class="ttname"><a href="a02909.html">tagDCE</a></div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02458">userk.h:2458</a></div></div>
<div class="ttc" id="aa02909_html_a836027bc59a581f318ea7974231660a0"><div class="ttname"><a href="a02909.html#a836027bc59a581f318ea7974231660a0">tagDCE::pdceNext</a></div><div class="ttdeci">struct tagDCE * pdceNext</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02459">userk.h:2459</a></div></div>
<div class="ttc" id="aa03257_html_ab597263bdbb3441715804712fcf29e6d"><div class="ttname"><a href="a03257.html#ab597263bdbb3441715804712fcf29e6d">gpDispInfo</a></div><div class="ttdeci">PDISPLAYINFO gpDispInfo</div><div class="ttdef"><b>Definition:</b> <a href="a03257_source.html#l00125">kernel/globals.c:125</a></div></div>
<div class="ttc" id="aa02605_html_a81f6c7e5df9c00e3f33e6e1a94ac75fc"><div class="ttname"><a href="a02605.html#a81f6c7e5df9c00e3f33e6e1a94ac75fc">tagDISPLAYINFO::hDev</a></div><div class="ttdeci">HANDLE hDev</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01576">user.h:1576</a></div></div>
<div class="ttc" id="aa00563_html_a074685e97e89d6aa2accdfcb82328699"><div class="ttname"><a href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a></div><div class="ttdeci">ddeml v[i&lt; inst &gt;][t&lt; type &gt;][hObj|pObj] Dump DDEML state information ddeml lists all ddeml instances for this process n ddeml t&lt; type &gt; lists all ddeml objects of the given type n n assumes link is first DWORD</div><div class="ttdef"><b>Definition:</b> <a href="a00563_source.html#l00175">exts.h:175</a></div></div>
<div class="ttc" id="aa00644_html_a40f384390d37443680be366bd973ab3e"><div class="ttname"><a href="a00644.html#a40f384390d37443680be366bd973ab3e">_GetDCEx</a></div><div class="ttdeci">HDC _GetDCEx(PWND pwnd, HRGN hrgnClip, DWORD flags)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l00560">dc.c:560</a></div></div>
<div class="ttc" id="aa03290_html_a67abc9d7678097e0d7225e4af7f7973d"><div class="ttname"><a href="a03290.html#a67abc9d7678097e0d7225e4af7f7973d">SetFMouseMoved</a></div><div class="ttdeci">VOID SetFMouseMoved(VOID)</div><div class="ttdef"><b>Definition:</b> <a href="a03290_source.html#l01213">kernel/input.c:1213</a></div></div>
<div class="ttc" id="aa02581_html_ac18617bb8bdbcb8e9c73e759b9df75eb"><div class="ttname"><a href="a02581.html#ac18617bb8bdbcb8e9c73e759b9df75eb">tagWND::dwExpWinVer</a></div><div class="ttdeci">DWORD dwExpWinVer</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01423">user.h:1423</a></div></div>
<div class="ttc" id="aa02581_html_acd5ffb69aba2aab87ce8f5405a07b68e"><div class="ttname"><a href="a02581.html#acd5ffb69aba2aab87ce8f5405a07b68e">tagWND::cDC</a></div><div class="ttdeci">BYTE cDC</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01420">user.h:1420</a></div></div>
<div class="ttc" id="aa02581_html_a2778d611c2b27395e559c94d05732e1f"><div class="ttname"><a href="a02581.html#a2778d611c2b27395e559c94d05732e1f">tagWND::rcWindow</a></div><div class="ttdeci">RECT rcWindow</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01398">user.h:1398</a></div></div>
<div class="ttc" id="aa02581_html"><div class="ttname"><a href="a02581.html">tagWND</a></div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01388">user.h:1388</a></div></div>
<div class="ttc" id="aa03257_html_a6cdf8902d16435dff1e0c8bc95783563"><div class="ttname"><a href="a03257.html#a6cdf8902d16435dff1e0c8bc95783563">hrgnGDC</a></div><div class="ttdeci">HRGN hrgnGDC</div><div class="ttdef"><b>Definition:</b> <a href="a03257_source.html#l00444">kernel/globals.c:444</a></div></div>
<div class="ttc" id="aa02909_html_a860be5351f601ab541124507007056aa"><div class="ttname"><a href="a02909.html#a860be5351f601ab541124507007056aa">tagDCE::hrgnClip</a></div><div class="ttdeci">HRGN hrgnClip</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02463">userk.h:2463</a></div></div>
<div class="ttc" id="aa02581_html_a6053af0b243b6737640988eb63081de3"><div class="ttname"><a href="a02581.html#a6053af0b243b6737640988eb63081de3">tagWND::spwndParent</a></div><div class="ttdeci">struct tagWND * spwndParent</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01392">user.h:1392</a></div></div>
<div class="ttc" id="aa00644_html_abf0325ba752a15637a55bb0d21285282"><div class="ttname"><a href="a00644.html#abf0325ba752a15637a55bb0d21285282">DeleteHrgnClip</a></div><div class="ttdeci">VOID DeleteHrgnClip(PDCE pdce)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l00480">dc.c:480</a></div></div>
<div class="ttc" id="aa00371_html_a41f433389f20db57f042022a662e96de"><div class="ttname"><a href="a00371.html#a41f433389f20db57f042022a662e96de">RIP_WARNING</a></div><div class="ttdeci">#define RIP_WARNING</div><div class="ttdef"><b>Definition:</b> <a href="a00371_source.html#l00029">winerrp.h:29</a></div></div>
<div class="ttc" id="aa02909_html_ab16914cf4ed2b07963809d957831ff0c"><div class="ttname"><a href="a02909.html#ab16914cf4ed2b07963809d957831ff0c">tagDCE::pwndOrg</a></div><div class="ttdeci">struct tagWND * pwndOrg</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02461">userk.h:2461</a></div></div>
<div class="ttc" id="aa00644_html_a60c179a4f25667580d419b20c295f79e"><div class="ttname"><a href="a00644.html#a60c179a4f25667580d419b20c295f79e">InvalidateGDIWindows</a></div><div class="ttdeci">VOID InvalidateGDIWindows(PWND pwnd)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l01594">dc.c:1594</a></div></div>
<div class="ttc" id="aa00644_html_af26b19776903d244c87630df83f7c48f"><div class="ttname"><a href="a00644.html#af26b19776903d244c87630df83f7c48f">ResetOrg</a></div><div class="ttdeci">VOID ResetOrg(HRGN hrgn, PDCE pdce)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l00040">dc.c:40</a></div></div>
<div class="ttc" id="aa00644_html_a032fb1a6a955b0ec72e0412511d57ddc"><div class="ttname"><a href="a00644.html#a032fb1a6a955b0ec72e0412511d57ddc">DelayedDestroyCacheDC</a></div><div class="ttdeci">VOID DelayedDestroyCacheDC(VOID)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l01447">dc.c:1447</a></div></div>
<div class="ttc" id="aa02605_html_a5e0929a8ef013061be966961b2eddbff"><div class="ttname"><a href="a02605.html#a5e0929a8ef013061be966961b2eddbff">tagDISPLAYINFO::pDevLock</a></div><div class="ttdeci">LPVOID pDevLock</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01577">user.h:1577</a></div></div>
<div class="ttc" id="aa02909_html_a005e66f7da9c2c5c9c6982fda6794371"><div class="ttname"><a href="a02909.html#a005e66f7da9c2c5c9c6982fda6794371">tagDCE::hrgnClipPublic</a></div><div class="ttdeci">HRGN hrgnClipPublic</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02464">userk.h:2464</a></div></div>
<div class="ttc" id="aa00644_html_a1c4d30db5baf9bd9210e666a55ec85ac"><div class="ttname"><a href="a00644.html#a1c4d30db5baf9bd9210e666a55ec85ac">InvalidateDce</a></div><div class="ttdeci">VOID InvalidateDce(PDCE pdce)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l00380">dc.c:380</a></div></div>
<div class="ttc" id="aa00293_html_a41d387d1b2d42169cbaa2092c8a02abf"><div class="ttname"><a href="a00293.html#a41d387d1b2d42169cbaa2092c8a02abf">ValidateHwnd</a></div><div class="ttdeci">#define ValidateHwnd(hwnd)</div><div class="ttdef"><b>Definition:</b> <a href="a00293_source.html#l00090">immcli.h:90</a></div></div>
<div class="ttc" id="aa02889_html_abb1184e0c5805b5ad89b79dcc2bd17c8"><div class="ttname"><a href="a02889.html#abb1184e0c5805b5ad89b79dcc2bd17c8">tagTHREADINFO::rpdesk</a></div><div class="ttdeci">PDESKTOP rpdesk</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02288">userk.h:2288</a></div></div>
<div class="ttc" id="aa00899_html_ac2181d07596893ed44d18aa267ce4d23"><div class="ttname"><a href="a00899.html#ac2181d07596893ed44d18aa267ce4d23">LeaveCrit</a></div><div class="ttdeci">VOID LeaveCrit(VOID)</div></div>
<div class="ttc" id="aa00644_html_ac94f19fd4bf35ebf88eaea575f87bc0d"><div class="ttname"><a href="a00644.html#ac94f19fd4bf35ebf88eaea575f87bc0d">CreateCacheDC</a></div><div class="ttdeci">HDC CreateCacheDC(PWND pwndOrg, DWORD flags)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l01325">dc.c:1325</a></div></div>
<div class="ttc" id="aa02909_html_ac00f1663b75594a986bb299216d16bda"><div class="ttname"><a href="a02909.html#ac00f1663b75594a986bb299216d16bda">tagDCE::ptiOwner</a></div><div class="ttdeci">struct tagTHREADINFO * ptiOwner</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02467">userk.h:2467</a></div></div>
<div class="ttc" id="aa02609_html_a68937d60a6f49b7a8431db62b38ea721"><div class="ttname"><a href="a02609.html#a68937d60a6f49b7a8431db62b38ea721">tagDESKTOPINFO::spwnd</a></div><div class="ttdeci">struct tagWND * spwnd</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01603">user.h:1603</a></div></div>
<div class="ttc" id="aa02889_html"><div class="ttname"><a href="a02889.html">tagTHREADINFO</a></div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02260">userk.h:2260</a></div></div>
<div class="ttc" id="aa02581_html_a6171c9000ea2060597a9bcf498ee0316"><div class="ttname"><a href="a02581.html#a6171c9000ea2060597a9bcf498ee0316">tagWND::spwndChild</a></div><div class="ttdeci">struct tagWND * spwndChild</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01393">user.h:1393</a></div></div>
<div class="ttc" id="aa02889_html_a76d4881aa4c15330103e83a80e6b5dc7"><div class="ttname"><a href="a02889.html#a76d4881aa4c15330103e83a80e6b5dc7">tagTHREADINFO::pDeskInfo</a></div><div class="ttdeci">PDESKTOPINFO pDeskInfo</div><div class="ttdef"><b>Definition:</b> <a href="a00899_source.html#l02291">userk.h:2291</a></div></div>
<div class="ttc" id="aa02581_html_a17d59d04094aef8b577c0aa781cdf2c6"><div class="ttname"><a href="a02581.html#a17d59d04094aef8b577c0aa781cdf2c6">tagWND::rcClient</a></div><div class="ttdeci">RECT rcClient</div><div class="ttdef"><b>Definition:</b> <a href="a00365_source.html#l01399">user.h:1399</a></div></div>
<div class="ttc" id="aa00644_html_a7f629d5ea5347d4878f63af730734e45"><div class="ttname"><a href="a00644.html#a7f629d5ea5347d4878f63af730734e45">DestroyCacheDC</a></div><div class="ttdeci">BOOL DestroyCacheDC(PDCE *ppdce, HDC hdc)</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l01486">dc.c:1486</a></div></div>
<div class="ttc" id="aa00365_html_ad3225ce06580cb58802233512f3d9c81"><div class="ttname"><a href="a00365.html#ad3225ce06580cb58802233512f3d9c81">IsVisible</a></div><div class="ttdeci">BOOL IsVisible(PWND pwnd)</div><div class="ttdef"><b>Definition:</b> <a href="a03728_source.html#l00456">rtl/winmgr.c:456</a></div></div>
<div class="ttc" id="aa00899_html_ab5b6a53d2b84dedad66b13f7f4b8c035"><div class="ttname"><a href="a00899.html#ab5b6a53d2b84dedad66b13f7f4b8c035">CalcVisRgn</a></div><div class="ttdeci">BOOL CalcVisRgn(HRGN *hrgn, PWND pwndOrg, PWND pwndClip, DWORD flags)</div><div class="ttdef"><b>Definition:</b> <a href="a00905_source.html#l00441">visrgn.c:441</a></div></div>
<div class="ttc" id="aa00644_html_a31f5ecc6a84f44341dd408cf54f41a12"><div class="ttname"><a href="a00644.html#a31f5ecc6a84f44341dd408cf54f41a12">gnDCECount</a></div><div class="ttdeci">int gnDCECount</div><div class="ttdef"><b>Definition:</b> <a href="a00644_source.html#l00022">dc.c:22</a></div></div>
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